Question

How to use floor to get the closest integer value which is less than or equal to specified value in C

Answer 1

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

int main()
{
    printf("%.1lf\n", floor(3));
    printf("%.1lf\n", floor(3.14));
    printf("%.1lf\n", floor(3.4));
    printf("%.1lf\n", floor(3.5));
    printf("%.1lf\n", floor(3.6));
    printf("%.1lf\n", floor(3.99));

	return 0;
}


/*
run:

3.0
3.0
3.0
3.0
3.0
3.0

*/

 

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