fabsl
Fabsl is a mathematical function that returns the absolute value of a floating-point number. The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, the absolute value of 3.14 is 3.14, and the absolute value of -3.14 is also 3.14.
The fabsl function is part of the C standard library and is defined in the math.h header
The fabsl function is similar to the fabs function, which returns the absolute value of a double
In addition to the standard C library implementation of fabsl, there are also implementations available for
Overall, fabsl is a useful function for working with floating-point numbers in scientific and engineering applications,