This video demonstrate ow to using Returns the absolute value of Mathematical Functions is abs() and fabs() function with C++ Programming: Beginning CPP Tutorial: abs() is Returns the absolute value of arg as the same type as arg, where arg can be of any
floating-point type. There are versions of abs() in the cstdlib header file for arguments of
any integer type that will return the result as an integer type.
fabs() is Returns the absolute value of arg as the same type as the argument. The argument can be
int, long, float, double, or long double.