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 12 of 15.

Dipak said:   1 decade ago
I think, an % sign also can done it !

Renu said:   8 years ago
Modulus & division are different.

Saikiran said:   1 decade ago
What Prem Kumar comented is correct.

Varadaraj said:   7 years ago
As per my knowledge, it is option A.

Gautam said:   1 decade ago
Please explain fmod() and modf ().

Vikas said:   1 decade ago
What is the use of return 0 there?

Mahesh said:   1 decade ago
What is use of fmod() function ?

Asif sadrul said:   1 decade ago
@Ayapan.

Use %f instead of %d.

Amarjeet said:   8 years ago
I think the answer A is correct.

Abhishek said:   1 decade ago
Thanks Anitha for your Answer.


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