Introduction to Computers. Laboratory Manual. Experiment #3. Elementary Programming, II

Size: px
Start display at page:

Download "Introduction to Computers. Laboratory Manual. Experiment #3. Elementary Programming, II"

Transcription

1 Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 LNGG 1003 Khaleel I. Shaheen Introduction to Computers Laboratory Manual Experiment #3 Elementary Programming, II

2 Numeric Data Types and Operators The information stored in a computer is generally referred to as data. There are two types of numeric data: integers and real numbers. Integer types are for representing whole numbers, for example 5, 105 or Real types are for representing numbers with a fractional part, for example 5.5, 3.14 or How do we tell Python whether a number is an integer or a float? A number that has a decimal point is a float even if its fractional part is 0. For example, 1.0 is a float, but 1 is an integer. In the programming terminology, numbers such as 1.0 and 1 are called literals. A literal is a constant value that appears directly in a program. The operators for numeric data types are shown below Name Meaning Example Result + Addition Subtraction * Multiplication 300 * / Division 4 / 2 2 ** Exponentiation 4 ** % Remainder 20 % 3 2 Note that the + and - operators can be both unary and binary. A unary operator has only one operand; a binary operator has two. For example, the - operator in -5 is a unary operator to negate the number 5, whereas the - operator in 4-5 is a binary operator for subtracting 5 from 4. 2

3 The / operator performs a float division that results in a floating number if one of the two numbers is a float. >>> 4.0 / >>> 2.0 / The / operator performs an integer division if the two numbers are integers; the result is an integer, and any fractional part is truncated. >>> 5 / 2 2 >>> 2 / 4 0 To compute a b (a with an exponent of b) you can write a ** b in Python. >>> 2 ** 3 8 The % operator, known as remainder or modulo operator, yields the remainder after division. >>> 20 % 13 7 Ex: What are the results of the following expressions? 26 / / 5 28 % 5 25 % 5 3 ** % 5 * (23 * 3 % 2) 3

4 Evaluating Expressions and Operator Precedence Python expressions are evaluated in the same way as arithmetic expressions. When more than one operator is used in an expression, the following operator precedence rule is used to determine the order of evaluation: 1. Exponentiation (**) is applied first. 2. Multiplication (*), division (/), and remainder operators (%) are applied next. 3. Addition (+) and subtraction (-) operators are applied last. Operators contained within pairs of parentheses are evaluated first. Parentheses can be nested, in which case the expression in the inner parentheses is evaluated first. Ex: Write the following arithmetic expression in Python Solution: (2 + 1) 9( ) + 3(2 + 34) print(4.0 / (3 * (2 + 34)) - 9 * (1 + 2 * 3) + ( * (1+2)) / (2 + 3 * 12)) Augmented Assignment Operators The operators +, -, *, /, %, and ** can be combined with the assignment operator (=) to form augmented assignment operators. Very often the current value of a variable is used, modified, and then reassigned back to the same variable. For example, the following statement increases the variable count by 1: count = count + 1 Python allows you to combine assignment and addition operators using an augmented assignment operator. For instance, the preceding statement can be written as: count += 1 4

5 All augmented assignment operators are shown in the table below. Operator Name Example Equivalent += Addition assignment i += 8 i = i + 8 -= Subtraction assignment i -= 8 i = i - 8 *= Multiplication assignment i *= 8 i = i * 8 /= Division assignment i /= 8 i = i / 8 %= Remainder assignment i %= 8 i = i % 8 **= Exponent assignment i **= 8 i = i ** 8 Type Conversions and Rounding The datatypes we studied so far are integer, float and string. We can convert between those data types using the suitable method. For example, for converting to string we use the method str. x = 5 y = str(x) print("x",type(x)) print("y",type(y)) ('x', <type 'int'>) ('y', <type 'str'>) We also can convert to int from string, if the content of the string is an integer number. i = "10" j = int(i) print("i",type(i)) print("j",type(j)) ('i', <type 'str'>) ('j', <type 'int'>) 5

6 When converting from a float number to an integer number the fraction part is truncated. x = 10.5 y = int(x) print(y) 10 You can also use the round function to round a number to the nearest whole value. x = 10.6 y = round(x) print(y) 11.0 Lab Work Ex1: Write a Python Program that split up a given number of days to years, months, weeks, and days. For Example: If the user enters 410 days, the program prints 1 year, 1 month, 2 weeks, 1 day Solution: days = input("enter the number of days: ") years = days / 365 days = days % 365 months = days / 30 days = days % 30 weeks = days / 7 days = days % 7 print(str(years) + " years, " + str(months) + " months, " + str(weeks) + " weeks, " + str(days) + " days.") Ex2: Write a Python program that reads two points (ex, p1(5,5) and p2(3.5, -1.5)), then computes the distance between these two points. The formula for computing distance between two points is as follows (x2 x1) 2 + (y2 y1) 2 6

7 Solution: x1, y1 = input("enter point1: ") x2, y2 = input("enter point2: ") distance = ((x2 - x1) ** 2 + (y2 - y1) ** 2) ** 0.5 print("the distance between the two points is " + str(distance)) Homework 1. Assume that a = 1, and that each expression is independent. What are the results of the following expressions? a += 4 a -= 4 a *= 4 a /= 4 a /= 4.0 a %= 4 a = 56 * a What does a conversion from a float to an integer do with the fractional part of the float value? Does the int(value) function change the variable value? 3. Write a program that prompts the user to enter a four-digit integer and displays the number in reverse order. Enter an integer: Write a program that prompts the user to enter the side of a hexagon and displays its area. The formula for computing the area of a hexagon is A = s2 where s is the length of a side. 7

8 Enter the side: 7.5 The area of the hexagon is Good Luck 8

Computer Programming, I. Laboratory Manual. Experiment #2. Elementary Programming

Computer Programming, I. Laboratory Manual. Experiment #2. Elementary Programming Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #2

More information

Computer Programming, I. Laboratory Manual. Experiment #3. Selections

Computer Programming, I. Laboratory Manual. Experiment #3. Selections Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #3

More information

Lecture 3 Tao Wang 1

Lecture 3 Tao Wang 1 Lecture 3 Tao Wang 1 Objectives In this chapter, you will learn about: Arithmetic operations Variables and declaration statements Program input using the cin object Common programming errors C++ for Engineers

More information

Variable and Data Type I

Variable and Data Type I The Islamic University of Gaza Faculty of Engineering Dept. of Computer Engineering Intro. To Computers (LNGG 1003) Lab 2 Variable and Data Type I Eng. Ibraheem Lubbad February 18, 2017 Variable is reserved

More information

9/10/10. Arithmetic Operators. Today. Assigning floats to ints. Arithmetic Operators & Expressions. What do you think is the output?

9/10/10. Arithmetic Operators. Today. Assigning floats to ints. Arithmetic Operators & Expressions. What do you think is the output? Arithmetic Operators Section 2.15 & 3.2 p 60-63, 81-89 1 Today Arithmetic Operators & Expressions o Computation o Precedence o Associativity o Algebra vs C++ o Exponents 2 Assigning floats to ints int

More information

\n is used in a string to indicate the newline character. An expression produces data. The simplest expression

\n is used in a string to indicate the newline character. An expression produces data. The simplest expression Chapter 1 Summary Comments are indicated by a hash sign # (also known as the pound or number sign). Text to the right of the hash sign is ignored. (But, hash loses its special meaning if it is part of

More information

Unit 3. Operators. School of Science and Technology INTRODUCTION

Unit 3. Operators. School of Science and Technology INTRODUCTION INTRODUCTION Operators Unit 3 In the previous units (unit 1 and 2) you have learned about the basics of computer programming, different data types, constants, keywords and basic structure of a C program.

More information

Lecture 1. Types, Expressions, & Variables

Lecture 1. Types, Expressions, & Variables Lecture 1 Types, Expressions, & Variables About Your Instructor Director: GDIAC Game Design Initiative at Cornell Teach game design (and CS 1110 in fall) 8/29/13 Overview, Types & Expressions 2 Helping

More information

Lecture 3. Input, Output and Data Types

Lecture 3. Input, Output and Data Types Lecture 3 Input, Output and Data Types Goals for today Variable Types Integers, Floating-Point, Strings, Booleans Conversion between types Operations on types Input/Output Some ways of getting input, and

More information

Chapter 4: Basic C Operators

Chapter 4: Basic C Operators Chapter 4: Basic C Operators In this chapter, you will learn about: Arithmetic operators Unary operators Binary operators Assignment operators Equalities and relational operators Logical operators Conditional

More information

Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1

Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Module 2 - Part 2 DATA TYPES AND EXPRESSIONS 1/15/19 CSE 1321 MODULE 2 1 Topics 1. Expressions 2. Operator precedence 3. Shorthand operators 4. Data/Type Conversion 1/15/19 CSE 1321 MODULE 2 2 Expressions

More information

CSE 115. Introduction to Computer Science I

CSE 115. Introduction to Computer Science I CSE 115 Introduction to Computer Science I Note about posted slides The slides we post will sometimes contain additional slides/content, beyond what was presented in any one lecture. We do this so the

More information

Computer Programming CS F111

Computer Programming CS F111 Computer Programming CS F111 BITS Pilani Dubai Campus NAND KUMAR Basics of C Programming BITS Pilani Dubai Campus Write a program that 1. Asks 5 marks from the user, find the average of the marks and print

More information

Eng. Mohammed S. Abdualal

Eng. Mohammed S. Abdualal Islamic University of Gaza Faculty of Engineering Computer Engineering Dept. Computer Programming Lab (ECOM 2114) Created by Eng: Mohammed Alokshiya Modified by Eng: Mohammed Abdualal Lab 3 Selections

More information

COMP Primitive and Class Types. Yi Hong May 14, 2015

COMP Primitive and Class Types. Yi Hong May 14, 2015 COMP 110-001 Primitive and Class Types Yi Hong May 14, 2015 Review What are the two major parts of an object? What is the relationship between class and object? Design a simple class for Student How to

More information

Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur

Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions in C & C++ Mahesh Jangid Assistant Professor Manipal University, Jaipur Operators and Expressions 8/24/2012 Dept of CS&E 2 Arithmetic operators Relational operators Logical operators

More information

4. Inputting data or messages to a function is called passing data to the function.

4. Inputting data or messages to a function is called passing data to the function. Test Bank for A First Book of ANSI C 4th Edition by Bronson Link full download test bank: http://testbankcollection.com/download/test-bank-for-a-first-book-of-ansi-c-4th-edition -by-bronson/ Link full

More information

Review: Exam 1. Your First C++ Program. Declaration Statements. Tells the compiler. Examples of declaration statements

Review: Exam 1. Your First C++ Program. Declaration Statements. Tells the compiler. Examples of declaration statements Review: Exam 1 9/20/06 CS150 Introduction to Computer Science 1 1 Your First C++ Program 1 //*********************************************************** 2 // File name: hello.cpp 3 // Author: Shereen Khoja

More information

Introduction to Programming

Introduction to Programming Introduction to Programming Department of Computer Science and Information Systems Tingting Han (afternoon), Steve Maybank (evening) tingting@dcs.bbk.ac.uk sjmaybank@dcs.bbk.ac.uk Autumn 2017 Week 4: More

More information

Chapter 1 Summary. Chapter 2 Summary. end of a string, in which case the string can span multiple lines.

Chapter 1 Summary. Chapter 2 Summary. end of a string, in which case the string can span multiple lines. Chapter 1 Summary Comments are indicated by a hash sign # (also known as the pound or number sign). Text to the right of the hash sign is ignored. (But, hash loses its special meaning if it is part of

More information

ENGR 101 Engineering Design Workshop

ENGR 101 Engineering Design Workshop ENGR 101 Engineering Design Workshop Lecture 2: Variables, Statements/Expressions, if-else Edgardo Molina City College of New York Literals, Variables, Data Types, Statements and Expressions Python as

More information

! A program is a set of instructions that the. ! It must be translated. ! Variable: portion of memory that stores a value. char

! A program is a set of instructions that the. ! It must be translated. ! Variable: portion of memory that stores a value. char Week 1 Operators, Data Types & I/O Gaddis: Chapters 1, 2, 3 CS 5301 Fall 2016 Jill Seaman Programming A program is a set of instructions that the computer follows to perform a task It must be translated

More information

Expressions. Eric Roberts Handout #3 CSCI 121 January 30, 2019 Expressions. Grace Murray Hopper. Arithmetic Expressions.

Expressions. Eric Roberts Handout #3 CSCI 121 January 30, 2019 Expressions. Grace Murray Hopper. Arithmetic Expressions. Eric Roberts Handout #3 CSCI 121 January 30, 2019 Expressions Grace Murray Hopper Expressions Eric Roberts CSCI 121 January 30, 2018 Grace Hopper was one of the pioneers of modern computing, working with

More information

Operators. Lecture 3 COP 3014 Spring January 16, 2018

Operators. Lecture 3 COP 3014 Spring January 16, 2018 Operators Lecture 3 COP 3014 Spring 2018 January 16, 2018 Operators Special built-in symbols that have functionality, and work on operands operand an input to an operator Arity - how many operands an operator

More information

COSC 243. Data Representation 3. Lecture 3 - Data Representation 3 1. COSC 243 (Computer Architecture)

COSC 243. Data Representation 3. Lecture 3 - Data Representation 3 1. COSC 243 (Computer Architecture) COSC 243 Data Representation 3 Lecture 3 - Data Representation 3 1 Data Representation Test Material Lectures 1, 2, and 3 Tutorials 1b, 2a, and 2b During Tutorial a Next Week 12 th and 13 th March If you

More information

Variable and Data Type I

Variable and Data Type I Islamic University Of Gaza Faculty of Engineering Computer Engineering Department Lab 2 Variable and Data Type I Eng. Ibraheem Lubbad September 24, 2016 Variable is reserved a location in memory to store

More information

CSc 10200! Introduction to Computing. Lecture 2-3 Edgardo Molina Fall 2013 City College of New York

CSc 10200! Introduction to Computing. Lecture 2-3 Edgardo Molina Fall 2013 City College of New York CSc 10200! Introduction to Computing Lecture 2-3 Edgardo Molina Fall 2013 City College of New York 1 C++ for Engineers and Scientists Third Edition Chapter 2 Problem Solving Using C++ 2 Objectives In this

More information

Learning the Language - V

Learning the Language - V Learning the Language - V Fundamentals We now have locations to store things so we need a way to get things into those storage locations To do that, we use assignment statements Deja Moo: The feeling that

More information

Week 2: Console I/O and Operators Arithmetic Operators. Integer Division. Arithmetic Operators. Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.

Week 2: Console I/O and Operators Arithmetic Operators. Integer Division. Arithmetic Operators. Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5. Week 2: Console I/O and Operators Gaddis: Chapter 3 (2.14,3.1-6,3.9-10,5.1) CS 1428 Fall 2014 Jill Seaman 1 2.14 Arithmetic Operators An operator is a symbol that tells the computer to perform specific

More information

Overview (4) CPE 101 mod/reusing slides from a UW course. Assignment Statement: Review. Why Study Expressions? D-1

Overview (4) CPE 101 mod/reusing slides from a UW course. Assignment Statement: Review. Why Study Expressions? D-1 CPE 101 mod/reusing slides from a UW course Overview (4) Lecture 4: Arithmetic Expressions Arithmetic expressions Integer and floating-point (double) types Unary and binary operators Precedence Associativity

More information

3. EXPRESSIONS. It is a sequence of operands and operators that reduce to a single value.

3. EXPRESSIONS. It is a sequence of operands and operators that reduce to a single value. 3. EXPRESSIONS It is a sequence of operands and operators that reduce to a single value. Operator : It is a symbolic token that represents an action to be taken. Ex: * is an multiplication operator. Operand:

More information

Arithmetic Operators. Binary Arithmetic Operators. Arithmetic Operators. A Closer Look at the / Operator. A Closer Look at the % Operator

Arithmetic Operators. Binary Arithmetic Operators. Arithmetic Operators. A Closer Look at the / Operator. A Closer Look at the % Operator 1 A Closer Look at the / Operator Used for performing numeric calculations C++ has unary, binary, and ternary s: unary (1 operand) - binary ( operands) 13-7 ternary (3 operands) exp1? exp : exp3 / (division)

More information

On a 64-bit CPU. Size/Range vary by CPU model and Word size.

On a 64-bit CPU. Size/Range vary by CPU model and Word size. On a 64-bit CPU. Size/Range vary by CPU model and Word size. unsigned short x; //range 0 to 65553 signed short x; //range ± 32767 short x; //assumed signed There are (usually) no unsigned floats or doubles.

More information

Computer Programming, I. Laboratory Manual. Experiment #4. Mathematical Functions & Characters

Computer Programming, I. Laboratory Manual. Experiment #4. Mathematical Functions & Characters Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #4

More information

Professor: Sana Odeh Lecture 3 Python 3.1 Variables, Primitive Data Types & arithmetic operators

Professor: Sana Odeh Lecture 3 Python 3.1 Variables, Primitive Data Types & arithmetic operators 1 Professor: Sana Odeh odeh@courant.nyu.edu Lecture 3 Python 3.1 Variables, Primitive Data Types & arithmetic operators Review What s wrong with this line of code? print( He said Hello ) What s wrong with

More information

Objectives. Data Types (continued) Data Types 4. การเข ยนโปรแกรมพ นฐาน ว ทยาการคอมพ วเตอร เบ องต น Fundamentals of Computer Science

Objectives. Data Types (continued) Data Types 4. การเข ยนโปรแกรมพ นฐาน ว ทยาการคอมพ วเตอร เบ องต น Fundamentals of Computer Science 204111 ว ทยาการคอมพ วเตอร เบ องต น Fundamentals of Computer Science ภาคการศ กษาท ภาคการศกษาท 1 ป ปการศกษา การศ กษา 2556 4. การเข ยนโปรแกรมพ นฐาน 4.2 ต วแปร น พจน และการก าหนดค า รวบรวมโดย อ. ดร. อาร ร

More information

Assoc. Prof. Dr. Marenglen Biba. (C) 2010 Pearson Education, Inc. All rights reserved.

Assoc. Prof. Dr. Marenglen Biba. (C) 2010 Pearson Education, Inc. All rights reserved. Assoc. Prof. Dr. Marenglen Biba (C) 2010 Pearson Education, Inc. All for repetition statement do while repetition statement switch multiple-selection statement break statement continue statement Logical

More information

Operators and Expressions:

Operators and Expressions: Operators and Expressions: Operators and expression using numeric and relational operators, mixed operands, type conversion, logical operators, bit operations, assignment operator, operator precedence

More information

Getting Started Values, Expressions, and Statements CS GMU

Getting Started Values, Expressions, and Statements CS GMU Getting Started Values, Expressions, and Statements CS 112 @ GMU Topics where does code go? values and expressions variables and assignment 2 where does code go? we can use the interactive Python interpreter

More information

Reserved Words and Identifiers

Reserved Words and Identifiers 1 Programming in C Reserved Words and Identifiers Reserved word Word that has a specific meaning in C Ex: int, return Identifier Word used to name and refer to a data element or object manipulated by the

More information

More Programming Constructs -- Introduction

More Programming Constructs -- Introduction More Programming Constructs -- Introduction We can now examine some additional programming concepts and constructs Chapter 5 focuses on: internal data representation conversions between one data type and

More information

XQ: An XML Query Language Language Reference Manual

XQ: An XML Query Language Language Reference Manual XQ: An XML Query Language Language Reference Manual Kin Ng kn2006@columbia.edu 1. Introduction XQ is a query language for XML documents. This language enables programmers to express queries in a few simple

More information

Data Handing in Python

Data Handing in Python Data Handing in Python As per CBSE curriculum Class 11 Chapter- 3 By- Neha Tyagi PGT (CS) KV 5 Jaipur(II Shift) Jaipur Region Introduction In this chapter we will learn data types, variables, operators

More information

Python Numbers. Learning Outcomes 9/19/2012. CMSC 201 Fall 2012 Instructor: John Park Lecture Section 01 Discussion Sections 02-08, 16, 17

Python Numbers. Learning Outcomes 9/19/2012. CMSC 201 Fall 2012 Instructor: John Park Lecture Section 01 Discussion Sections 02-08, 16, 17 Python Numbers CMSC 201 Fall 2012 Instructor: John Park Lecture Section 01 Discussion Sections 02-08, 16, 17 1 (adapted from Meeden, Evans & Mayberry) 2 Learning Outcomes To become familiar with the basic

More information

Chapter 03: Computer Arithmetic. Lesson 09: Arithmetic using floating point numbers

Chapter 03: Computer Arithmetic. Lesson 09: Arithmetic using floating point numbers Chapter 03: Computer Arithmetic Lesson 09: Arithmetic using floating point numbers Objective To understand arithmetic operations in case of floating point numbers 2 Multiplication of Floating Point Numbers

More information

LECTURE 3 C++ Basics Part 2

LECTURE 3 C++ Basics Part 2 LECTURE 3 C++ Basics Part 2 OVERVIEW Operators Type Conversions OPERATORS Operators are special built-in symbols that have functionality, and work on operands. Operators are actually functions that use

More information

Divide: Paper & Pencil

Divide: Paper & Pencil Divide: Paper & Pencil 1001 Quotient Divisor 1000 1001010 Dividend -1000 10 101 1010 1000 10 Remainder See how big a number can be subtracted, creating quotient bit on each step Binary => 1 * divisor or

More information

CIS 110: Introduction to Computer Programming

CIS 110: Introduction to Computer Programming CIS 110: Introduction to Computer Programming Lecture 3 Express Yourself ( 2.1) 9/16/2011 CIS 110 (11fa) - University of Pennsylvania 1 Outline 1. Data representation and types 2. Expressions 9/16/2011

More information

Basic Operations jgrasp debugger Writing Programs & Checkstyle

Basic Operations jgrasp debugger Writing Programs & Checkstyle Basic Operations jgrasp debugger Writing Programs & Checkstyle Suppose you wanted to write a computer game to play "Rock, Paper, Scissors". How many combinations are there? Is there a tricky way to represent

More information

Prefix/Infix/Postfix Notation

Prefix/Infix/Postfix Notation Prefix/Infix/Postfix Notation One commonly writes arithmetic expressions, such as 3 + 4 * (5-2) in infix notation which means that the operator is placed in between the two operands. In this example, the

More information

by Pearson Education, Inc. All Rights Reserved. 2

by Pearson Education, Inc. All Rights Reserved. 2 1992-2010 by Pearson Education, Inc. All Rights Reserved. 2 1992-2010 by Pearson Education, Inc. All Rights Reserved. 3 1992-2010 by Pearson Education, Inc. All Rights Reserved. 4 1992-2010 by Pearson

More information

Expressions and Casting. Data Manipulation. Simple Program 11/5/2013

Expressions and Casting. Data Manipulation. Simple Program 11/5/2013 Expressions and Casting C# Programming Rob Miles Data Manipulation We know that programs use data storage (variables) to hold values and statements to process the data The statements are obeyed in sequence

More information

Information Science 1

Information Science 1 Topics covered Information Science 1 Terms and concepts from Week 8 Simple calculations Documenting programs Simple Calcula,ons Expressions Arithmetic operators and arithmetic operator precedence Mixed-type

More information

Announcements. Lab Friday, 1-2:30 and 3-4:30 in Boot your laptop and start Forte, if you brought your laptop

Announcements. Lab Friday, 1-2:30 and 3-4:30 in Boot your laptop and start Forte, if you brought your laptop Announcements Lab Friday, 1-2:30 and 3-4:30 in 26-152 Boot your laptop and start Forte, if you brought your laptop Create an empty file called Lecture4 and create an empty main() method in a class: 1.00

More information

การเขยนโปรแกรมพนฐาน ภาคการศ กษาท 1 ป การศ กษา การเข ยนโปรแกรมพ นฐาน ว ทยาการคอมพ วเตอร เบ องต วทยาการคอมพวเตอรเบองตน น

การเขยนโปรแกรมพนฐาน ภาคการศ กษาท 1 ป การศ กษา การเข ยนโปรแกรมพ นฐาน ว ทยาการคอมพ วเตอร เบ องต วทยาการคอมพวเตอรเบองตน น 204111 ว ทยาการคอมพ วเตอร เบ องต วทยาการคอมพวเตอรเบองตน น Fundamentals of Computer Science ภาคการศ กษาท 1 ป การศ กษา 2556 4. การเข ยนโปรแกรมพ นฐาน การเขยนโปรแกรมพนฐาน 4.2 ต วแปร น พจน และการก าหนดค า รวบรวมโดย

More information

ADD Identifier-1 TO Identifier-2 Literal-1. ADD Identifier-1. GIVING Identifier-2 Literal-1

ADD Identifier-1 TO Identifier-2 Literal-1. ADD Identifier-1. GIVING Identifier-2 Literal-1 The Basic Arithmetic Verbs All basic arithmetic operations of ADD, SUBTRACT, MULTIPLY, and DIVIDE require the fields operated on :- 1) Have numeric PICTURE clause 2) Actually have numeric data when the

More information

Lecture Numbers. Richard E Sarkis CSC 161: The Art of Programming

Lecture Numbers. Richard E Sarkis CSC 161: The Art of Programming Lecture Numbers Richard E Sarkis CSC 161: The Art of Programming Class Administrivia Agenda To understand the concept of data types To be familiar with the basic numeric data types in Python To be able

More information

VARIABLES & ASSIGNMENTS

VARIABLES & ASSIGNMENTS Fall 2018 CS150 - Intro to CS I 1 VARIABLES & ASSIGNMENTS Sections 2.1, 2.2, 2.3, 2.4 Fall 2018 CS150 - Intro to CS I 2 Variables Named storage location for holding data named piece of memory You need

More information

Expressions and Casting

Expressions and Casting Expressions and Casting C# Programming Rob Miles Data Manipulation We know that programs use data storage (variables) to hold values and statements to process the data The statements are obeyed in sequence

More information

Positional notation Ch Conversions between Decimal and Binary. /continued. Binary to Decimal

Positional notation Ch Conversions between Decimal and Binary. /continued. Binary to Decimal Positional notation Ch.. /continued Conversions between Decimal and Binary Binary to Decimal - use the definition of a number in a positional number system with base - evaluate the definition formula using

More information

Fundamentals: Expressions and Assignment

Fundamentals: Expressions and Assignment Fundamentals: Expressions and Assignment A typical Python program is made up of one or more statements, which are executed, or run, by a Python console (also known as a shell) for their side effects e.g,

More information

Operators in C. Staff Incharge: S.Sasirekha

Operators in C. Staff Incharge: S.Sasirekha Operators in C Staff Incharge: S.Sasirekha Operators An operator is a symbol which helps the user to command the computer to do a certain mathematical or logical manipulations. Operators are used in C

More information

Information Science 1

Information Science 1 Information Science 1 Simple Calcula,ons Week 09 College of Information Science and Engineering Ritsumeikan University Topics covered l Terms and concepts from Week 8 l Simple calculations Documenting

More information

COMP 110 Introduction to Programming. What did we discuss?

COMP 110 Introduction to Programming. What did we discuss? COMP 110 Introduction to Programming Fall 2015 Time: TR 9:30 10:45 Room: AR 121 (Hanes Art Center) Jay Aikat FB 314, aikat@cs.unc.edu Previous Class What did we discuss? COMP 110 Fall 2015 2 1 Today Announcements

More information

Outline. Data and Operations. Data Types. Integral Types

Outline. Data and Operations. Data Types. Integral Types Outline Data and Operations Data Types Arithmetic Operations Strings Variables Declaration Statements Named Constant Assignment Statements Intrinsic (Built-in) Functions Data and Operations Data and Operations

More information

Errors in Computation

Errors in Computation Theory of Errors Content Errors in computation Absolute Error Relative Error Roundoff Errors Truncation Errors Floating Point Numbers Normalized Floating Point Numbers Roundoff Error in Floating Point

More information

Computer Programming, I. Laboratory Manual. Experiment #6. Loops

Computer Programming, I. Laboratory Manual. Experiment #6. Loops Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #6

More information

Arithmetic. 2.2.l Basic Arithmetic Operations. 2.2 Arithmetic 37

Arithmetic. 2.2.l Basic Arithmetic Operations. 2.2 Arithmetic 37 2.2 Arithmetic 37 This is particularly important when programs are written by more than one person. It may be obvious to you that cv stands for can volume and not current velocity, but will it be obvious

More information

CEN 414 Java Programming

CEN 414 Java Programming CEN 414 Java Programming Instructor: H. Esin ÜNAL SPRING 2017 Slides are modified from original slides of Y. Daniel Liang WEEK 2 ELEMENTARY PROGRAMMING 2 Computing the Area of a Circle public class ComputeArea

More information

Python The way of a program. Srinidhi H Asst Professor Dept of CSE, MSRIT

Python The way of a program. Srinidhi H Asst Professor Dept of CSE, MSRIT Python The way of a program Srinidhi H Asst Professor Dept of CSE, MSRIT 1 Problem Solving Problem solving means the ability to formulate problems, think creatively about solutions, and express a solution

More information

GO - OPERATORS. This tutorial will explain the arithmetic, relational, logical, bitwise, assignment and other operators one by one.

GO - OPERATORS. This tutorial will explain the arithmetic, relational, logical, bitwise, assignment and other operators one by one. http://www.tutorialspoint.com/go/go_operators.htm GO - OPERATORS Copyright tutorialspoint.com An operator is a symbol that tells the compiler to perform specific mathematical or logical manipulations.

More information

Chapter 2 Elementary Programming

Chapter 2 Elementary Programming Chapter 2 Elementary Programming Part I 1 Motivations In the preceding chapter, you learned how to create, compile, and run a Java program. Starting from this chapter, you will learn how to solve practical

More information

COE 202- Digital Logic. Number Systems II. Dr. Abdulaziz Y. Barnawi COE Department KFUPM. January 23, Abdulaziz Barnawi. COE 202 Logic Design

COE 202- Digital Logic. Number Systems II. Dr. Abdulaziz Y. Barnawi COE Department KFUPM. January 23, Abdulaziz Barnawi. COE 202 Logic Design 1 COE 0- Digital Logic Number Systems II Dr. Abdulaziz Y. Barnawi COE Department KFUPM COE 0 Logic Design January 3, 016 Objectives Base Conversion Decimal to other bases Binary to Octal and Hexadecimal

More information

cs1114 REVIEW of details test closed laptop period

cs1114 REVIEW of details test closed laptop period python details DOES NOT COVER FUNCTIONS!!! This is a sample of some of the things that you are responsible for do not believe that if you know only the things on this test that they will get an A on any

More information

Introduction. Following are the types of operators: Unary requires a single operand Binary requires two operands Ternary requires three operands

Introduction. Following are the types of operators: Unary requires a single operand Binary requires two operands Ternary requires three operands Introduction Operators are the symbols which operates on value or a variable. It tells the compiler to perform certain mathematical or logical manipulations. Can be of following categories: Unary requires

More information

Operators & Expressions

Operators & Expressions Operators & Expressions Operator An operator is a symbol used to indicate a specific operation on variables in a program. Example : symbol + is an add operator that adds two data items called operands.

More information

Chapter 2 ELEMENTARY PROGRAMMING

Chapter 2 ELEMENTARY PROGRAMMING Chapter 2 ELEMENTARY PROGRAMMING Lecture notes for computer programming 1 Faculty of Engineering and Information Technology Prepared by: Iyad Albayouk ١ Objectives To write Java programs to perform simple

More information

Two Types of Types. Primitive Types in Java. Using Primitive Variables. Class #07: Java Primitives. Integer types.

Two Types of Types. Primitive Types in Java. Using Primitive Variables. Class #07: Java Primitives. Integer types. Class #07: Java Primitives Software Design I (CS 120): M. Allen, 13 Sep. 2018 Two Types of Types So far, we have mainly been dealing with objects, like DrawingGizmo, Window, Triangle, that are: 1. Specified

More information

Basic Concepts. Computer Science. Programming history Algorithms Pseudo code. Computer - Science Andrew Case 2

Basic Concepts. Computer Science. Programming history Algorithms Pseudo code. Computer - Science Andrew Case 2 Basic Concepts Computer Science Computer - Science - Programming history Algorithms Pseudo code 2013 Andrew Case 2 Basic Concepts Computer Science Computer a machine for performing calculations Science

More information

CSI Lab 02. Tuesday, January 21st

CSI Lab 02. Tuesday, January 21st CSI Lab 02 Tuesday, January 21st Objectives: Explore some basic functionality of python Introduction Last week we talked about the fact that a computer is, among other things, a tool to perform high speed

More information

A complex expression to evaluate we need to reduce it to a series of simple expressions. E.g * 7 =>2+ 35 => 37. E.g.

A complex expression to evaluate we need to reduce it to a series of simple expressions. E.g * 7 =>2+ 35 => 37. E.g. 1.3a Expressions Expressions An Expression is a sequence of operands and operators that reduces to a single value. An operator is a syntactical token that requires an action be taken An operand is an object

More information

MATVEC: MATRIX-VECTOR COMPUTATION LANGUAGE REFERENCE MANUAL. John C. Murphy jcm2105 Programming Languages and Translators Professor Stephen Edwards

MATVEC: MATRIX-VECTOR COMPUTATION LANGUAGE REFERENCE MANUAL. John C. Murphy jcm2105 Programming Languages and Translators Professor Stephen Edwards MATVEC: MATRIX-VECTOR COMPUTATION LANGUAGE REFERENCE MANUAL John C. Murphy jcm2105 Programming Languages and Translators Professor Stephen Edwards Language Reference Manual Introduction The purpose of

More information

Introduction to Computers and Programming. Numeric Values

Introduction to Computers and Programming. Numeric Values Introduction to Computers and Programming Prof. I. K. Lundqvist Lecture 5 Reading: B pp. 47-71 Sept 1 003 Numeric Values Storing the value of 5 10 using ASCII: 00110010 00110101 Binary notation: 00000000

More information

Lecture 2: Python Arithmetic

Lecture 2: Python Arithmetic Lecture 2: Python Arithmetic CS1068+ Introductory Programming in Python Dr Kieran T. Herley 2018/19 Department of Computer Science University College Cork Basic data types in Python Python data types Programs

More information

Prepared by: Shraddha Modi

Prepared by: Shraddha Modi Prepared by: Shraddha Modi Introduction Operator: An operator is a symbol that tells the Computer to perform certain mathematical or logical manipulations. Expression: An expression is a sequence of operands

More information

CS Programming I: Primitives and Expressions

CS Programming I: Primitives and Expressions CS 200 - Programming I: Primitives and Expressions Marc Renault Department of Computer Sciences University of Wisconsin Madison Spring 2018 TopHat Sec 3 (AM) Join Code: 427811 TopHat Sec 4 (PM) Join Code:

More information

DaMPL. Language Reference Manual. Henrique Grando

DaMPL. Language Reference Manual. Henrique Grando DaMPL Language Reference Manual Bernardo Abreu Felipe Rocha Henrique Grando Hugo Sousa bd2440 flt2107 hp2409 ha2398 Contents 1. Getting Started... 4 2. Syntax Notations... 4 3. Lexical Conventions... 4

More information

Chapter 6 Primitive types

Chapter 6 Primitive types Chapter 6 Primitive types Lesson page 6-1. Primitive types Question 1. There are an infinite number of integers, so it would be too ineffient to have a type integer that would contain all of them. Question

More information

Chapter 7 Arithmetic

Chapter 7 Arithmetic Chapter 7 Arithmetic 7-1 Arithmetic in C++ Arithmetic expressions are made up of constants, variables, operators and parentheses. The arithmetic operators in C++ are as follows + (addition) - (subtraction)

More information

Here n is a variable name. The value of that variable is 176.

Here n is a variable name. The value of that variable is 176. UNIT II DATA, EXPRESSIONS, STATEMENTS 9 Python interpreter and interactive mode; values and types: int, float, boolean, string, and list; variables, expressions, statements, tuple assignment, precedence

More information

Computer Programming, I. Laboratory Manual. Final Exam Solution

Computer Programming, I. Laboratory Manual. Final Exam Solution Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Final Exam Solution

More information

Lesson 3: Arithmetic & Casting. Pic 10A Ricardo Salazar

Lesson 3: Arithmetic & Casting. Pic 10A Ricardo Salazar Lesson 3: Arithmetic & Casting Pic 10A Ricardo Salazar (2.4) Constants Sometimes we want a 'variable' that does not vary!? (OK that does not make sense... but how about a 'house' whose guest is always

More information

Computer Programming, I. Laboratory Manual. Experiment #5. Strings & Text Files Input

Computer Programming, I. Laboratory Manual. Experiment #5. Strings & Text Files Input Think Twice Code Once The Islamic University of Gaza Engineering Faculty Department of Computer Engineering Fall 2017 ECOM 2005 Khaleel I. Shaheen Computer Programming, I Laboratory Manual Experiment #5

More information

Ex: If you use a program to record sales, you will want to remember data:

Ex: If you use a program to record sales, you will want to remember data: Data Variables Programs need to remember values. Ex: If you use a program to record sales, you will want to remember data: A loaf of bread was sold to Sione Latu on 14/02/19 for T$1.00. Customer Name:

More information

Chapter 4 Section 2 Operations on Decimals

Chapter 4 Section 2 Operations on Decimals Chapter 4 Section 2 Operations on Decimals Addition and subtraction of decimals To add decimals, write the numbers so that the decimal points are on a vertical line. Add as you would with whole numbers.

More information

FLOATING POINT NUMBERS

FLOATING POINT NUMBERS Exponential Notation FLOATING POINT NUMBERS Englander Ch. 5 The following are equivalent representations of 1,234 123,400.0 x 10-2 12,340.0 x 10-1 1,234.0 x 10 0 123.4 x 10 1 12.34 x 10 2 1.234 x 10 3

More information

COMP1730/COMP6730 Programming for Scientists. Data: Values, types and expressions.

COMP1730/COMP6730 Programming for Scientists. Data: Values, types and expressions. COMP1730/COMP6730 Programming for Scientists Data: Values, types and expressions. Lecture outline * Data and data types. * Expressions: computing values. * Variables: remembering values. What is data?

More information

Chapter 3: Operators, Expressions and Type Conversion

Chapter 3: Operators, Expressions and Type Conversion 101 Chapter 3 Operators, Expressions and Type Conversion Chapter 3: Operators, Expressions and Type Conversion Objectives To use basic arithmetic operators. To use increment and decrement operators. To

More information

Computer Programming ECIV 2303 Chapter 1 Starting with MATLAB Instructor: Dr. Talal Skaik Islamic University of Gaza Faculty of Engineering

Computer Programming ECIV 2303 Chapter 1 Starting with MATLAB Instructor: Dr. Talal Skaik Islamic University of Gaza Faculty of Engineering Computer Programming ECIV 2303 Chapter 1 Starting with MATLAB Instructor: Dr. Talal Skaik Islamic University of Gaza Faculty of Engineering 1 Introduction 2 Chapter l Starting with MATLAB This chapter

More information

Chapter 17. Fundamental Concepts Expressed in JavaScript

Chapter 17. Fundamental Concepts Expressed in JavaScript Chapter 17 Fundamental Concepts Expressed in JavaScript Learning Objectives Tell the difference between name, value, and variable List three basic data types and the rules for specifying them in a program

More information