simple-squiggle/node_modules/mathjs/docs/reference/functions/log2.md

Function log2

Calculate the 2-base of a value. This is the same as calculating log(x, 2).

For matrices, the function is evaluated element wise.

Syntax

math.log2(x)

Parameters

Parameter	Type	Description
x	number | BigNumber | Complex | Array | Matrix	Value for which to calculate the logarithm.

Returns

Type	Description
number | BigNumber | Complex | Array | Matrix	Returns the 2-base logarithm of x

Throws

Type	Description

Examples

math.log2(0.03125)           // returns -5
math.log2(16)                // returns 4
math.log2(16) / math.log2(2) // returns 4
math.pow(2, 4)               // returns 16

See also

exp, log, log1p, log10