Field-Map Scripting

4.1.3.1.27 Ln

Ln function


Prototype:

function Ln(const X: extended): extended;

Description:

The Ln function returns the natural logarithm. The opposite function is Exp function.

Syntax:

Ln(X); / variable:= Ln(X);

Part

Description

variable

A variable declared as extended

X

The input (extended value) to the Ln function

Return value:

The result of the calculation as an extended value




Example:


var

 x,z : extended;


begin

 x:= 4;

 z:= Ln(x);

 ShowMessage(FloatToStr(z));

end.

// Next examples: Ln(1)               = 0

//               "Ln(Eulers number)"  = 1  //Ln(Exp(1))

//                Ln(12)              = 2.30258...



Output in Field-Map Data Collector:


See also:

Power; Round; RoundTo, RoundVariant; Round2int, Cos; ArcCos; ArcCosH; Sin; ArcSin; ArcSinH; ArcTan; ArcTan2; ArcTanH; CosH; SinH; Tan; TanH; Random; RandomRange; Randomize; Floor; Ceil; Int; Frac; Log10; Ln; Exp; Abs; Min; Max; Odd; SecondsBetween;CompareValue; SameValue; Trunc


Example


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