How to mulitiplay numbers

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How to mulitiplay numbers

Postby zok965 » July 6th, 2005, 12:23 pm

Dear all
Please help me to solve one problem. For example i wana multiplay two numbers like this X^Y. 2^3=8 or 5^4=625

Plese give me a code.

Thanks
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Postby Kambiz » July 6th, 2005, 12:35 pm

For that purpose the following function is defined in the Math unit.

Code: Select all
function Power(const Base, Exponent: Extended): Extended;
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Postby Radagast » July 6th, 2005, 12:37 pm

Code: Select all
function multiply (base: real; power: integer): real;
begin
 if power<0 then
  begin
   base:=1/base;
   power:=-power;
  end;
 if power=0 then Result:=1
 else Result:=base*multiply(base, power-1);
end;

It's the easiest one. I'll try to find you faster one, using binary value of power (is it called like that?).
EDIT: Kambiz was faster.
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