Math.log(number)
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SWiSH Player Support
SWF4 or later - Supported Internally

Syntax
Math.log(x)

Arguments
x: A number or expression > 0.

Returns
A number.

Description
Returns the natural logarithm of the parameter x.

Sample
Math.log(2
);   // returns natural log of 2, approximately 0.6931
Math.log(100
)/Math.log(10);   // returns 2, the log, base 10 of 100

Note: Requires Advanced Math Support. See here for more information

See Also
Math.exp(), Math.log10(), Converting Log Base
Math.pow() and Math.sqrt().