How do you(or calculators) work out the square root of any given number?
What's the actual method of working out square roots? Not including trial and error, calcualtors or memory.
ID:187401
 Dec 18 2004, 2:08 pm
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Dec 18 2004, 2:20 pm
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XxDohxX
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http://www.google.com/search?hl=en&q=how+to+find+square+root
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[number]^.5
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Wow, that is so cool. I never knew you could do it that way.
But if the number is negative, it just makes the answer negative, so a check would work with it. ~~> Dragon Lord | |
Thanks a lot.
I was wondering how you'd write that in equation form though, I mean you'd write squared like this: Number * Number = Number^2 2 * 2 = 2^2 But what about roots? Blank Blank Blanks = Blank^0.5 Fill in the blanks for me! =P | |
DeathAwaitsU wrote:
Thanks a lot. It's a painful process. Google will give you plenty of results. This one looked fairly straight forward: http://www.mathpages.com/home/kmath146.htm | |
Unknown Person wrote:
But if the number is negative, it just makes the answer negative, so a check would work with it. Imaginary numbers... | |
you could use newtons method. its much easier to do that on computer than to do it by hand, but its still possible to do by hand. you can use it to find the root of any polynomial equation, so you could use the same method for cube roots as well as square roots.
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