C Programming - Declarations and Initializations - Discussion

Discussion Forum : Declarations and Initializations - General Questions (Q.No. 5)
5.
How would you round off a value from 1.66 to 2.0?
ceil(1.66)
floor(1.66)
roundup(1.66)
roundto(1.66)
Answer: Option
Explanation:
/* Example for ceil() and floor() functions: */

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

int main()
{
    printf("\n Result : %f" , ceil(1.44) );
    printf("\n Result : %f" , ceil(1.66) );
 
    printf("\n Result : %f" , floor(1.44) );    
    printf("\n Result : %f" , floor(1.66) );

    return 0;
}
// Output:
// Result : 2.000000
// Result : 2.000000
// Result : 1.000000
// Result : 1.000000
Discussion:
80 comments Page 5 of 8.

Teju said:   2 decades ago
What is difference between roundup() and roundto().

Are they math fn's or not?

Jhishu said:   2 decades ago
Thanks to S. Sasikumar.

Ranjith said:   9 years ago
Yes, correct @Akshatha.

Sindhu said:   2 decades ago
What is use of roundup and roundto?

Sindhu said:   2 decades ago
What is difference between roundup() and roundto() ?

Purnima said:   1 decade ago
@sasi.

Here you are saying that for >. 5 then only the valu will round to next higest integer but if we give as ceil (2. 1) also we get ans as 3 then how?

And for roundup value is it >. 5 or may anything?

Deepa said:   1 decade ago
Thanks.

Sri said:   1 decade ago
Roundoff means? here why we chose the ceil function only?

Bhavana said:   1 decade ago
Good explanation by sasikumar.

HIMANSHU said:   1 decade ago
Binit and Suresh is quite right!!


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