Documentation

math.ldexp() function

math.ldexp() is the inverse of math.frexp(). It returns frac x 2**exp.

Function type signature
(exp: int, frac: float) => float
For more information, see Function type signatures.

Parameters

frac

(Required) Fraction to use in the operation.

exp

(Required) Exponent to use in the operation.

Examples

Return the inverse of math.frexp

import "math"

math.ldexp(frac: 0.5, exp: 6)// 32.0


Use math.ldexp in map

import "math"

data
    |> map(fn: (r) => ({_time: r._time, tag: r.tag, _value: math.ldexp(frac: r.frac, exp: r.exp)}))

View example input and ouput


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