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Forums > C64 Coding > calculating of square roots ?
2006-06-29 00:59
Trifox
Account closed

Registered: Mar 2006
Posts: 108
calculating of square roots ?

hi all, for my newest project i am in urgent need to calculate the length of a 2d vector, reminding pythagorian math i remember that i have to calculate the roots of a fixed point (8bits.8bits) number, how can that be mastered in a convenient way ?!?!?!

thx
 
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2006-07-11 13:06
Graham
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Registered: Dec 2002
Posts: 990
Math deals around with lot's of logic and how to compute stuff, computer science extends that by asking about information, complexity and most important: computability.

If you look at computer science courses you will see lot's of math which build the base to lot's to follow. And ofcourse courses on how to apply all of this, after all you study all this to make a living and not levitate above earth on theory.
2006-07-11 15:40
Copyfault

Registered: Dec 2001
Posts: 478
Math is the science of structure. It can ofcourse be applied to other fields in science, mostly to compute things, but it also exists on its own.

If you concentrate on the computational side of math, I can understand what you mean with "extansion of math", but in mathmatics you do slightly more than "computations and dealing around with logic". You try to investigate structures without any necessity of reality.

then again, I guess almost every "pure mathmatician" does not bother about "having to make a living" - until he badly has to ("Hmm, where's this dreamworld of beautiful structures gone? What idiot kicked me out of it??? Help, I guess this is reality" ;) )
2006-07-11 15:56
chatGPZ

Registered: Dec 2001
Posts: 11386
computer science is a form of >>>applied<<< math. and there is no doubt about it :) pure math is more like pure information science, both are in many cases pretty useless for realworld problems :)
2006-07-11 16:38
Graham
Account closed

Registered: Dec 2002
Posts: 990
I think you see "computer science" too much as a computer course which it isn't. Computer science was started long before computers existed, and btw "information science" is computer science aswell. That's why we call it "Informatik" in germany.
2006-07-11 17:08
chatGPZ

Registered: Dec 2001
Posts: 11386
no, i'm not mistaking CS as a programming course, i know it isnt. (and programming has little to do with "informatik"). but there is still a difference between what resembles "applied" math (sth like "technische informatik") which deals with solving real world problems and all the theory mumbowumbo many other parts of math (and CS) relate to. (what i wrote previously is a -admittedly shortened and slightly modified- quote from edsgar dijkstra btw, taken from a simelar discussion about a simelar topic... other nice ones are "Programming is one of the most difficult branches of applied mathematics; the poorer mathematicians had better remain pure mathematicians." and "...the harm was done: the topic became known as "computer science"---which, actually, is like referring to surgery as "knife science"---and it was firmly implanted in people's minds that computing science is about machines and their peripheral equipment." :))
2006-07-12 18:34
Danzig

Registered: Jun 2002
Posts: 440
this is all sooooo *offtopic* :)
2006-07-12 18:35
chatGPZ

Registered: Dec 2001
Posts: 11386
someone call the police!
2006-07-12 19:53
Danzig

Registered: Jun 2002
Posts: 440
you should empty your stiffy pockets before they arrive
2006-07-12 22:30
chatGPZ

Registered: Dec 2001
Posts: 11386
they are as empty as they could be unfortunatly :(
2006-07-13 17:41
Graham
Account closed

Registered: Dec 2002
Posts: 990
Yeps, when will somebody post a sqrt routine... except me :P
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