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math.frexp

math.frexp

number, number math.frexp( number x )

Description

Lua reference description: Returns m and e such that x = m2e, e is an integer and the absolute value of m is in the range ((0.5, 1) (or zero when x is zero).

Used to split the number value into a normalized fraction and an exponent. Two values are returned: the first is a multiplier in the range 1/2 (inclusive) to 1 (exclusive) and the second is an integer exponent.

The result is such that x = m*2^e.

Arguments

1 number x
The value to get the normalized fraction and the exponent from.

Returns

1 number
m, multiplier - between 0.5 and 1.
2 number
e, exponent - always an integer.

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