C Programming - Declarations and Initializations - Discussion

Discussion Forum : Declarations and Initializations - General Questions (Q.No. 1)
1.
Which of the following statements should be used to obtain a remainder after dividing 3.14 by 2.1 ?
rem = 3.14 % 2.1;
rem = modf(3.14, 2.1);
rem = fmod(3.14, 2.1);
Remainder cannot be obtain in floating point division.
Answer: Option
Explanation:

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.

Example:


#include <stdio.h>
#include <math.h>

int main ()
{
  printf ("fmod of 3.14/2.1 is %lf\n", fmod (3.14,2.1) );
  return 0;
}

Output:
fmod of 3.14/2.1 is 1.040000

Discussion:
141 comments Page 13 of 15.

Aafreen said:   1 decade ago
What if 3.14 % 2? What to use?

Shahi said:   7 years ago
What is the function %lf here?

Krishna said:   6 years ago
Why option C is more relevant?
(3)

Shan said:   1 decade ago
What is the work of the fmod?

Pappu said:   1 decade ago
Ya, swathi answer is correct.

Raku said:   1 decade ago
@Nayarana it is not possible.

Tanushi said:   8 years ago
Please explain how this work?

Amar said:   1 decade ago
Thanks for your suggestions.

Bhuvana said:   6 years ago
Option C is correct. Thanks
(1)

Vaibhav Danve said:   4 weeks ago
Agree, Option C Is Correct.


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