Microsoft® Visual Basic® Scripting Edition
Log Function
 Language Reference 
Version 1 

See Also


Description
Returns the natural logarithm of a number.
Syntax
Log(number)

The number argument can be any valid numeric expression greater than 0.

Remarks
The natural logarithm is the logarithm to the base e. The constant e is approximately 2.718282.

You can calculate base-n logarithms for any number x by dividing the natural logarithm of x by the natural logarithm of n as follows:

Logn(x) = Log(x) / Log(n)
The following example illustrates a custom Function that calculates base-10 logarithms:
Function Log10(X)
    Log10 = Log(X) / Log(10)
End Function