Computer Science: A Structured Programming Approach Using C, Third Edition
3rd Edition
ISBN: 9780534491321
Author: Behrouz A. Forouzan, Richard F. Gilberg
Publisher: Course Technology, Inc.
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Textbook Question
Chapter 3, Problem 1PS
A unary expression consists of only one operand with no operator.
a. True
b. False
Expert Solution & Answer
Explanation of Solution
Given: A statement about a unary expression.
To find:Â If it is true or not that a unary expression consists of only one operand with no operator.
Solution:
Unary expression is a kind of the expression that includes one operand and one operator.
For example, sizeof(), plus/minus operators, and cast operator.
The syntax for the unary expression is mentioned below.
Unary expression Operator Operand.
Hence, the given statement that a unary expression includes only one operand with no operator is false.
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Students have asked these similar questions
Given the following Extended-BNF grammar of the basic mathematical expressions:
Show the derivation steps for the expression: ( 2 + 3 ) * 6 – 20 / ( 3 + 1 )
Draw the parsing tree of this expression.
SEE IMAGE
Whentheuserenters!!,themostrecentcommandinthehistoryisexecuted.In the example above, if the user entered the command:
Osh> !!
The ‘ls -l’ command should be executed and echoed on user’s screen. The command should also be placed in the history buffer as the next command.
Whentheuserentersasingle!followedbyanintegerN,theNthcommandin the history is executed. In the example above, if the user entered the command:
Osh> ! 3
The ‘ps’ command should be executed and echoed on the user’s screen. The command should also be placed in the history buffer as the next command.
Error handling:
The program should also manage basic error handling. For example, if there are no commands in the history, entering !! should result in a message “No commands in history.” Also, if there is no command corresponding to the number entered with the single !, the program should output "No such command in history."
Activity No.
Activity
Time (weeks)
Immediate Predecessors
1
Requirements collection
3
2
Requirements structuring
4
1
3
Process analysis
3
2
4
Data analysis
3
2
5
Logical design
50
3,4
6
Physical design
5
5
7
Implementation
6
6
c. Using the information from part b, prepare a network diagram. Identify the critical path.
Chapter 3 Solutions
Computer Science: A Structured Programming Approach Using C, Third Edition
Ch. 3 - A unary expression consists of only one operand...Ch. 3 - The left operand in an assignment expression must...Ch. 3 - Associativity is used to determine which of...Ch. 3 - Side effect is an action that results from the...Ch. 3 - Prob. 5PSCh. 3 - Prob. 6PSCh. 3 - Prob. 7PSCh. 3 - Prob. 8PSCh. 3 - Prob. 9PSCh. 3 - Prob. 10PS
Ch. 3 - Which of the following statements about mixed...Ch. 3 - Which of the following statements about compound...Ch. 3 - Prob. 13PSCh. 3 - Prob. 14PSCh. 3 - Which of the following is not a binary expression?...Ch. 3 - Prob. 16PSCh. 3 - If originally x=4, what is the value of x after...Ch. 3 - Prob. 18PSCh. 3 - Prob. 19PSCh. 3 - What is the value of each of the following...Ch. 3 - Given the following definitions, which of the...Ch. 3 - If originally x=2,y=3,andz=2, what is the value of...Ch. 3 - Prob. 23PSCh. 3 - If x=2945, what is the value of each of the...Ch. 3 - Prob. 25PSCh. 3 - Prob. 26PSCh. 3 - Write a program that reads two integers from the...Ch. 3 - Write a program that extracts and prints the...Ch. 3 - Prob. 29PSCh. 3 - Write a program that calculates the area and...Ch. 3 - Prob. 31PSCh. 3 - Prob. 32PSCh. 3 - Write a program that changes a temperature reading...Ch. 3 - Write the C code for each of the following...Ch. 3 - Prob. 35PSCh. 3 - Write a program that converts and prints a...Ch. 3 - Prob. 37PSCh. 3 - Write a program that prompts a user for an integer...Ch. 3 - Prob. 39PS
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