Source code for pow function?

[hoangnc]

pow source code

I have to write a function like pow (double pow(double x, double y)). Anyone has this source code?

 

[clivechen]

pow function

pow is math function! In the standard library, there are his prototype!

 

[Tihi]

pow function code

If You realy need ... You can use this fact:

X^Y <=> e^(ln(X^Y)) <=> e^(Y*ln(X))

PASCAL/DELPHI:

function Pow(aBasis: longint; aExponent: byte): longint;
begin Pow:=Trunc(Exp(aExponent*Ln(aBasis))); end;

Tihi 8)