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Calculate logarithm
Source position: mathh.inc line 110
function Ln( |
d: ValReal |
):ValReal; |
Ln returns the natural logarithm of the Real parameter X. X must be positive.
An run-time error will occur when X is negative.
|
Exponentiate |
Program Example37; { Program to demonstrate the Ln function. } begin Writeln (Ln(1)); { Prints 0 } Writeln (Ln(Exp(1))); { Prints 1 } end.