Math rounding functions
- math.ceil()
- math.floor()
- math.round()
- math.roundeven()
- math.roundhalfdown()
- math.roundhalfup()
- math.trunc()
math.roundhalfup()
Rounds to nearest, ties towards positive infinity (half up).
Return Value
If x is math.NAN, a NaN will be returned.
If x is integral, ±0, x itself is returned.
If x is math.POS_INFINITY or math.NEG_INFINITY, an infinity of the same sign is returned.
Otherwise, the rounded value of x is returned.
Format
FLOAT
math.roundhalfup(FLOAT x)