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Finding a square root

YPhysicist · 2001-03-08T02:12:24

This is probably a basic C++ question, but I''m a beginner and I lost my durn MSDN Library cd. So I can''t look this stuff up. Anyway, how do you find a square root of a number? And how do you square a number? I''ve tried: x^2 to square it, and x^(1/2) to find the square root, but they don''t work. My guess is that the ^ character doesn''t have anything to do with exponents, I remember reading something about it being a not symbol, or something like that. Anyway, how do you find the square root of a number, and how do you raise numbers to exponents? Also, what files must I include to use these functions?

General and Gameplay Programming Programming

Started by YPhysicist March 07, 2001 08:25 PM

9 comments, last by YPhysicist 23 years, 11 months ago

LilBudyWizer

491

March 08, 2001 02:11 AM

Just in case anyone mistakes that for a good way to calculate the nearest integer to the square root of an integer that takes about five times longer than...

    int Sqrt(int x){   return(sqrt(x)+0.5);}

It also doesn't always round correctly. Strangely it is only wrong at 20 out of the first million integers. [/source]

Edited by - LilBudyWizer on March 8, 2001 3:12:22 AM

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Finding a square root

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Finding a square root

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