math.roundhalfdown()

Rounds to nearest, ties towards negative infinity (half down).

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.roundhalfdown(FLOAT x)