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:
79 comments Page 7 of 8.

Deepa said:   1 decade ago
What is round of value and ceil () ?

Manikandan said:   1 decade ago
What is the difference b/w ceil & floor, and also explain the work of roundup and roundto ?

What is the use of ceil() and floor() function?

Sri said:   1 decade ago
Thank you for u'r logic legend explanation chandan.

Chandan said:   1 decade ago
I take daily life exa.
Ceil mean ceiling fan i.e. Upper limit
Floor mean ground i.e. Lower limit
Here I take upper limit mean +positive infinity n lower is -neg
Infinity

During ceil function we round value toward positive value

i.e. 3.2=4
3.6=4
2.1=3

Ramamohan said:   1 decade ago
Hi my dear friends can you explain how to use roundup and roundto functions ?

Deepthi sai said:   1 decade ago
What is the difference between ceil() and round() ?. Please I need a clear description.

Klakston said:   1 decade ago
Weather are we using roundup and roundto function for program or not?

Sravya said:   1 decade ago
Good explanation by binit.

Saurav said:   1 decade ago
What is use of ceil function?

Shivaprabhu said:   1 decade ago
Good explanation by binit.


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