C Programming - Floating Point Issues - Discussion
Discussion Forum : Floating Point Issues - Find Output of Program (Q.No. 8)
8.
What will be the output of the program?
#include<stdio.h>
#include<math.h>
int main()
{
float n=1.54;
printf("%f, %f\n", ceil(n), floor(n));
return 0;
}
Answer: Option
Explanation:
ceil(x) round up the given value. It finds the smallest integer not < x.
floor(x) round down the given value. It finds the smallest integer not > x.
printf("%f, %f\n", ceil(n), floor(n)); In this line ceil(1.54) round up the 1.54 to 2 and floor(1.54) round down the 1.54 to 1.
In the printf("%f, %f\n", ceil(n), floor(n)); statement, the format specifier "%f %f" tells output to be float value. Hence it prints 2.000000 and 1.000000.
Discussion:
2 comments Page 1 of 1.
SaireddySareddy said:
1 decade ago
It is like our ceiling and flooring.
Ceiling means up (up value).
Flooring means down (down value).
Ceiling means up (up value).
Flooring means down (down value).
Nakulrai said:
8 years ago
But why we have to round off? Explain.
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