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8.4.49 Log Function

Returns the natural logarithm of a number.
 

Syntax

Log(number)

Arguments

number
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


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