# Functions
Ceil (5.551, 2) -> 5.56.
DecimalCeil (5.551, 2) -> 5.56.
DecimalFloor (5.555, 2) -> 5.55.
FloatFromInt (156666, 4) -> 15.6666.
FloatToInt (15.6666, 4) -> 156666.
Floor (5.555, 2) -> 5.55.
Log args: [product, base(e), step(e)].
NewFromFloat max 12 digits decimal.
Round (5.555, 2) -> 5.56.