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Question


Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?



Options:
A .  rem = 3.14 % 2.1;
B .  rem = modf(3.14, 2.1);
C .  rem = fmod(3.14, 2.1);
D .  Remainder cannot be obtain in floating point division.
Answer: Option C

fmod(x,y) - Calculates x modulo y, the remainder of x/y.
This function is the same as the modulus operator. But fmod() performs floating point divisions.


#include <stdio.h>
#include <math.h>
int main ()
{
printf ("fmod of 3.14/2.1 is %lfn", fmod (3.14,2.1) );
return 0;
}


Output:
fmod of 3.14/2.1 is 1.040000



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