Question

Which of the following is used to find the absolute value of the argument in C++?

(a) abs()

(b) fabs()

(c) mod()

(d) ab()

I got this question during an interview.

Question is taken from Computational Geometry topic in portion Computational Geometry of Data Structures & Algorithms II

Answer 1

Correct choice is (b) fabs()

Easiest explanation - In C++ the absolute value of an argument can be found by using the function fabs(). It is available under the header file math.h.