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ceil() Calculate Ceiling of Value
#include <math.h>
double ceil(x); Ceiling of value
double x; Floating point value
ceil() returns a double value of the smallest integer that is greater
than or equal to 'x'.
Returns: Smallest integer >= 'x'. There is no error return.
-------------------------------- Example ---------------------------------
The following statements calculate the ceiling of 3.3, 0.0 and -3.3.
#include <math.h> /* Required for function definition only */
main()
{
double x, y, z;
x = ceil(3.3); /* x = 4.0 */
y = ceil(0.0); /* y = 0.0 */
z = ceil(-3.3); /* z = -3.0 */
}
See Also:
floor()
fmod()
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