Rounding and remainder functions
[Math Library]

Functions
double	ceil (double x)
	Round up value. Rounds x upward, returning the smallest integral value that is not less than x.
double	floor (double x)
	Round down value. Rounds x downward, returning the largest integral value that is not greater than x.

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Function Documentation

double ceil (  double  x  )

Parameters: x  Value to round up. Returns: The smallest integral value that is not less than x (as a floating-point value).

double floor (  double  x  )

Parameters: x  Value to round down. Returns: The value of x rounded downward (as a floating-point value).

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