From: ams AT ludd DOT luth DOT se (Martin Str|mberg)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Powers and Roots
Date: 18 Mar 1999 18:45:08 GMT
Organization: University of Lulea, Sweden
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Paul (astralm AT home DOT com) wrote:
: Without using MATH.H's POW(x,y) function and SQRT(x) function, I must create
: a calculator that finds powers and roots.
: 
: I pretty much have a decent power function, using FOR loops, but I want to
: use this function to also find roots.
: 
: Here's the code:
: 
: double Power    (double num1, double num2);
:         {
:         int i;
: 
:         for (i = 1; i <= num2; i++)
:                 num1 *= num1;
: 
:         return num1;
:         }

Hmm, I thought 2^0 = 1 != 2.

Anyway for the (square) root of y (i. e. SQRT(y)) you might consider
that you need to find the x with the property Power(x, 2) == y.


Shostakovich, Symphony No. 5,

							MartinS