C/math.h/fma

    
//Declaration: float fmaf(float a, float b, float c); 
               double fma(double a, double b, double c); 
               long double fmal(long double a, long double b, long double c);  
 
  
  #include <math.h>
  #include <stdio.h>
  int main(void)
  {
     printf("%f", fmal (10.2,12,9));
 
  }
         
        /*
        -0.000000
        */