Name
Math.log( ): compute a natural logarithm â ECMAScript v1
Synopsis
Math.log
(x
)
Arguments
-
x
Any numeric value or expression greater than zero.
Returns
The natural logarithm of
x
.
Description
Math.log( )
computes
log e
x, the natural logarithm of its argument. The
argument must be greater than zero.
You can compute the base-10 and base-2 logarithms of a number with these formulas:
log10x = log10e · logex log2x = log2e · logex
These formulas translate into the following JavaScript functions:
function log10(x) { return Math.LOG10E * Math.log(x); } function log2(x) { return Math.LOG2E * Math.log(x); }
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