Clib.modf()
syntax: 
Clib.modf(x, i) 
where: 
x  float to work with.
i  variable to receive the integral part of x.

return: 
number  signed fractional part of x.

description: 
This method splits a floating point number x into integer and fractional parts, where the integer and fraction both have the same sign as x. The method sets the parameter i to the integer part of x and returns the fractional part of x.

see: 
