Math. ceil (x) -- returns the smallest integer greater than or equal to the number parameter (take the entire function) and rounds up the number. The following is a good example. If you are
Math.ceil () performs an upward roundingMath.floor () performs a downward roundingMath.Round () performs standard roundingHere are some additions:Ceil (): The fractional part is rounded to the integer part. For example: Math.ceil ( 12.2)//return
floor--the number of digits to a given
Callback Function Definition
A callback function is a function called by a function pointer. If you pass the
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