Math.modf

math.modf (x)

Returns two numbers, the integral part of x and the fractional part of x. Numbers in Lua are doubles and doubles are a 64-bit floating point type: 1 bit for sign, 11 bits for the exponent, and 52 bits for the mantissa. Its range is +/–1.7E308 with at least 15 digits of precision.

Math.abs

Math.ceil

Math.floor

Math.huge

Math.min

Math.max

Windows API - type double