Corticon Studio: Rule Language Guide
:
Rule operator details and examples
:
Natural logarithm
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Natural logarithm
SYNTAX
<
Number
>.ln
DESCRIPTION
Returns a Decimal value equal to the natural logarithm (base e) of <
Number
>. If <
Number
> is equal to
0
(zero), an error is returned when the rule is executed. This error will halt execution for all data present.
USAGE RESTRICTIONS
The Operators row of the table in
Summary Table of Vocabulary Usage Restriction
applies. No special exceptions.
RULESHEET EXAMPLE
The following Rulesheet uses
.ln
to calculate the natural logarithm of
decimal2
and assign it to
decimal1
.
SAMPLE RULETEST 1
A sample Ruletest provides results for three examples of
decimal2
. Input and Output panels are shown below:
SAMPLE RULETEST 2
Another sample Ruletest for three examples of
decimal2
where one example is equal to zero (0). The resulting error is illustrated below: