Test Bank Chapter 3 .ca
Chapter 3
Short Answer
1. Why is PI a const in the program that finds the area and circumference of a circle?
Answer: So that it cannot be changed during the run of the program.
2. What is the library function that finds the square root of a number sent to it?
Answer: sqrt
3. What is the value of y after the following code executes:
float y = 3.4 + sqrt (25.0);
Answer: 8.4
4. What is the library function that finds the absolute value of an integer?
Answer: abs
5. What is top-down design?
Answer: A method of solving a problem by breaking it into smaller parts.
6. What is a void function?
Answer: A function that does not return a value.
7. What is the output of this code, given the function definition that follows:
doSomething( );
doSomething( ); // code in main
void doSomething( ) { // function definition
cout ................
................
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