Rockwell-automation GMLC Reference Manual Bedienungsanleitung Seite 688

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Publication GMLC-5.2 - November 1999
651
The argument may be any floating-point value or expression. The
constant e is the base of the natural system of logarithms. It is an irrational
number, which to 15 decimal places, is equal to 2.71828 18284 59045.
For example, the following expression is evaluated as 2.7182xx (e) since
anything raised to the power of 1 is itself.
Exponent(1)
Natural Logarithm
The value of the Log function is the natural logarithm (log
e
or ln) of the
argument, as shown below.
Argument
+1 +2–1–2
1
2
3
4
e
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