Using the abs() function requires including the ____ header file.
A) cnumber
B) iostream
C) math
D) cmath

Question

Quizplus · Accepted Answer

The abs() function is defined in the cmath header file, therefore it must be included in order to use the function. The abs() function is used to obtain the absolute value of a number, and it is part of the cmath library. Therefore, including the cmath header file is necessary to use the abs() function.

Using the Abs() Function Requires Including the ____ Header File