Question

How to use modf() function to break a floating point into an integral and a fractional parts in C

Answer 1

#include <stdio.h>     
#include <math.h> 
 
#define PI 3.14159265
 
int main(int argc, char **argv)
{   
	double fractional_part, int_part;

	fractional_part = modf(PI , &int_part);
	printf("%f = %f + %f\n", PI, int_part, fractional_part);
  
    return 0;
}
 
 
/*
run:
   
3.141593 = 3.000000 + 0.141593

*/

 

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