Syntax
#include <math.h> double floor(double x);Description
floor calculates the largest integer that is less than or equal to x.
floor returns the floating-point result as a double value.
The result of floor cannot have a range error.
This example assigns y value of the largest integer less than or equal to 2.8 and z the value of the largest integer less than or equal to -2.8.
#include <math.h>
int main(void)
{
double y,z;
y = floor(2.8);
z = floor(-2.8);
printf("floor( 2.8 ) = %lf\n", y);
printf("floor( -2.8 ) = %lf\n", z);
return 0;
/****************************************************************************
The output should be:
floor( 2.8 ) = 2.000000
floor( -2.8 ) = -3.000000
****************************************************************************/
}
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