Amazing maths

It's very interesting but I remember seeing it here years ago

thats awesome!

Sim

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I'll be sure to pass this onto my maths teacher

ill just get a calculator.

Ummmm I'll just do it the old fashion way, thanks. Pretty neat thoght.

Never seen that method before I wonder if it works will all numbers?

/Runs off to find a pencil and paper.

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That is cool... Ill have a quick play around later see if it works for all numbers... Quite neat if you have forgot your calculator and need to do simple arithmetic.

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It works for all numbers, since you are just applying basic maths :P

Nickv schrieb:
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> It works for all numbers, since you are just
> applying basic maths :P

+1

too bad it`s only multiplication. a similar procedure to solve more interesting problems would be a lot more helpful.

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used to be GPGSL's Nick Heidfeld

Nickv Wrote:
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> It works for all numbers, since you are just
> applying basic maths :P

Either you missed my point or I didn't make myself clear enough. This thread was not about "Ohh, voddoo magic math mystic". It was rather my way to express how easy an abstract discipline like maths (and even if the problems themselves are "basic" can be visualized.

Same as the "Sieve of Erastothenes" still amazes me, even if the algorithm to detect prime numbers and structure them in a symetrical way already is like 2300 years old. Not because I think it's magic, but simply because of its aesthetic value.

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REHAB IS FOR QUITTERS

Chet asked if it'd work for all numbers and I replied that it does, since you're applying basic maths, just with lines to help you.

*tries 4.769.983 x 10.395.299*

Iceman-Kimi Wrote:
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> *tries 4.769.983 x 10.395.299*


Nick, you just got owned and that by byron

you would need a big sheet of paper but why shouldn't that work?

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used to be GPGSL's Nick Heidfeld

Look who's got owned now, Monil!

well:

it works with all numbers that have a finite amount of decimal places (more or less the rational numbers without all periodic numbers)

multiplication of 2 complex numbers can be achieved by doing the system 4 times and adding the parts correctly if the real and imaginary parts match the decimal places rule stated above.

it's only practicable if you have numbers with an similar amount of digits, the digits themselves have to be small.

eg 123*321 is ok, 456*789 or 123456*123 are tough.




edit: obviously a thread killing post, eh?

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used to be GPGSL's Nick Heidfeld



Edited 1 time(s). Last edit at 01/28/2009 12:34AM by n00binio.