Re: Power arithmetic function to C#

"Hanford Carr @lmcinvestments.com>" <"hwcarr<nospam> wrote in message
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Tom de Neef wrote:
"SunYour" <sunyour@xxxxxxxxxxx> schreef in bericht
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Does anyone know how the Power arithmetic function works? I need to
define my own Power function in c# and need to know how to implement
it.

z = x ** y
ln(z) = y * ln(x)
z = exp(ln(z)) = exp(y * ln(x))

function Power(const Base, Exponent: Extended): Extended;
// base ** exponent for base >0
begin
if base>0
then result:=exp(exponent*ln(base))

//if x = 0 then z = 0, no need to have an error for that.

If y = 0 then z=1 first.


else if base = 0
then result := 0

else error
end;

Groetjes,
Maarten Wiltink


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