Log
Synopsis
Log(number)
Arguments
The number argument can be any valid numeric expression greater than 0. Specifying 0 or a negative number results in a runtime error.
Description
The natural logarithm is the logarithm to the base e. The constant e (Exp(1)) is approximately 2.718282.
You can calculate basen 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)
Examples
The following example uses the Log function to calculate the natural logarithm for each of the integers 1 through 10:
For x = 1 To 10
Println "Natural log of ",x," = ",Log(x)
Next
The following example uses the Log function to calculate the base10 logarithms for the numbers 10 through 100, counting by tens. For 100, it returns 2 (10 to the power of x = 100).
x = 10
For y = 1 To 10
Base10 = Log(x) / Log(10)
Println "Base10 log of ",x," = ",Base10
x = x + 10
Next
See Also

Exp function