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Availability

This routine is available starting with SIL Engine™ 2.5.


Syntax

ln(number)

Description

Returns the natural logarithm of a number. Natural logarithms are based on the constant e (2.71828182845904).

Parameters

ParameterTypeRequiredDescription
numberNumberYesThe positive real number you want the natural logarithm for.

Return type

number


Example

number a = ln(86);
print("a= " + a);
number b = ln(exp(4));
print("b= " + b);

Prints:

        a= 4.454347;

        b= 4;


See also