# Sqrt()

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• 03-08-2003
krappykoder
Sqrt()
i know its a bit of a wierd question but you people are very knowledgable, does any1 know how to figure out the squre root of a number?
• 03-08-2003
frenchfry164
include cmath
use sqrt()
• 03-08-2003
krappykoder
remind me agen, how can i extract sums from libs?
• 03-08-2003
krappykoder
Scratch that: sqrt=pow(number,0.5)
i need to write a power function now :confused:
• 03-08-2003
Hammer
>>i need to write a power function now
Then search the boards, there's sample code out there. Or simply write your own.
• 03-08-2003
TechWins
Does anyone here actually know the precise formula to find the square root of a number? I'm not neccessarily looking to find out how to do it (I could easily find the answer myself), but to see if someone knows the formula for it. My math teahcer said she used to know, but she hasn't used it in so long that she forgot what it is.
• 03-08-2003
Davros
• 03-08-2003
TechWins
Davros, I don't particularly care to know the formula myself, yet to see if someone had the formula memorized themself.
• 03-08-2003
LouDu
Re: Sqrt()
Quote:

Originally posted by krappykoder
i know its a bit of a wierd question but you people are very knowledgable, does any1 know how to figure out the squre root of a number?
you find the square root of a number by mulptliging a number by it self, the perfect quares in math are as fallows

0=0
1=1
2=4
3=9
4=16
5=25
6=36
7=49
8=64
9=81
10=100
11=121
12=144

i know up to 15 but i jsut forgot them :)
• 03-08-2003
XSquared
Re: Re: Sqrt()
Quote:

Originally posted by LouDu
you find the square root of a number by mulptliging a number by it self
No, that's the square of the number.
• 03-08-2003
abrege
Re: Re: Sqrt()
Quote:

Originally posted by LouDu
you find the square root of a number by mulptliging a number by it self, the perfect quares in math are as fallows
Wow, and to think we were baffled all this time!
• 03-09-2003
XSquared
Re: Re: Re: Sqrt()
Quote:

Originally posted by abrege
Wow, and to think we were baffled all this time!
LOL

Do I detect a bit of sarcasm?
• 03-09-2003
frenchfry164
Quote:

you find the square root of a number by mulptliging a number by it self, the perfect quares in math are as fallows
Wowzers! I gotta tell my math teachers about this! I gotta find all of them since my 4th grade class! I must tell them that they taught me the square root wrongly! Haha! I can't wait to see the looks on their faces!
• 03-09-2003
Bajanine
Here is how we learned it!
This is taught to first year plumber and pipefitter appretices which is also how I was taught in school. It is rather convoluted though:
http://mathforum.org/library/drmath/view/52610.html

typo's again
[\edit]
• 03-09-2003
krappykoder
I dont know what convoluded means but it sure it complicated
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