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 ?
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 4 of 15.
Prem kumar said:
1 decade ago
modf->Breaks x into two parts: the integer part (stored in the object pointed by intpart) and the fractional part (returned by the function).
Each part has the same sign as x.
Example
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/* modf example */
#include <stdio.h>
#include <math.h>
int main ()
{
double param, fractpart, intpart;
param = 3.14159265;
fractpart = modf (param , &intpart);
printf ("%lf = %lf + %lf \n", param, intpart, fractpart);
return 0;
}
Output:
3.141593 = 3.000000 + 0.141593
Each part has the same sign as x.
Example
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/* modf example */
#include <stdio.h>
#include <math.h>
int main ()
{
double param, fractpart, intpart;
param = 3.14159265;
fractpart = modf (param , &intpart);
printf ("%lf = %lf + %lf \n", param, intpart, fractpart);
return 0;
}
Output:
3.141593 = 3.000000 + 0.141593
Velmani said:
1 decade ago
% (%d)is used for only integer datatype. % is does not used for float datatype. So if you need mod in deciamal number then you can use fmod(%f) function.
Saikiran said:
1 decade ago
What Prem Kumar comented is correct.
Saikiran said:
1 decade ago
#include<stdio.h>
#include<math.h>
int main()
{
float i,j;
i=3.14;j=2.1;
printf("\ni modulo j is %f",fmod(i,j));
return 0;
}
O/P:
i modulo j is 1.040000
#include<math.h>
int main()
{
float i,j;
i=3.14;j=2.1;
printf("\ni modulo j is %f",fmod(i,j));
return 0;
}
O/P:
i modulo j is 1.040000
Mounika said:
1 decade ago
Yes renuka is right.
Hemanth Kumar K said:
1 decade ago
fmod() function with values of floating type is the only operator which can be used to obtain the remainder for floating numbers.
Riyaz said:
1 decade ago
#include<stdio.h>
#include<conio.h>
void main()
{
float a,b,c;
c=a%b;
printf("%f",c);
}
#include<conio.h>
void main()
{
float a,b,c;
c=a%b;
printf("%f",c);
}
Harshada said:
1 decade ago
Yes Prem Kumar is right.
Nagesh said:
1 decade ago
Your answer may be depends on the Statement i.e. both % operator as well as fmod() used for taking Reminder %op for integer and fmod() for float.
JCoder said:
1 decade ago
fmode() is the lib function, returns the reminder of floating point.
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