Mathemagic

[Shorty20122012]

What is the method in this video called, and where can I find an explanation of what's happening?

Most likely, if my first question is answered, I'll be able to find the answer to the second question myself.

[mcbridemagic559]

very goood tecnique, explain how to do it in mor big numbers, excelent congratulation, I don't know why you dont invent it 15 years ago, i just get average 7 & 8 in primary in my country, can you do something with the squeare root, please say yes, thanks my friend.

[TheFrezta]

This is like making maths even more difficult for those who are already weak at it. why cant they just practice with mathemagic computer tutor, the way its actually done. not a pricey option if bought from maths-school.co.nz ....just 19.90NZD ...

[n00bszpro]

its a good method but then again it waste your time on drawing lines

[Kalmarffkraft]

aspbergers?

[320iguy]

that's sic

[fartcious]

awesomeness!

[iamhiphoprofl]

thats hard to master lol

[Norokrex]

also any tricks for division?

[Norokrex]

i wishi'd known this trick in middleschool..... you just made my life easier

[KlTTYFAT]

wouldnt it be easier to just multiply it in a calculator... or if u cant use it then just use the standard way of multiplying, takes up less space, and faster i guess. which ever u think is easier, still pretty cool

[dionyziz]

These graphical methods of solving are actually quite interesting and educational to study not for the speed in which they yield result, but for the ease with which they can be generalized to work with virtually any counting problem. Once you understand why the algorithm described in the video performs in fact a multiplication, a new way of thinking emerges, and you are not far away from being able to graphically solve probability, statistics, combinatorics and many other counting problems.

[KlTTYFAT]

@dionyziz

....What?....That last bit I didn't get, probably because I'm stupid... But yeah they are interesting and could be helpful for people who perfer to do it that way.

[zombiefuckification]

@KlTTYFAT if your middle sum, (it seems) is in the double digits, then you just add the first digit of that sum to the first (leftermost) sum. if you didn't understand before, hopefully this confused you to no end. :)

[KlTTYFAT]

@zombiefuckification

I get it.

But I don't get it anymore considering I typed that comment 2 years ago.

[BILL4EVERRRRRRR]

the main idea of this video is not to show you an easier way to calculate but a trick on calculating

[zombiefuckification]

@KlTTYFAT they were just showing you how a calculator does it.

[zarthelas]

cool

[comatarmsFTW]

a person could probably do this faster in their head but hey this is cool

[DiscoTam]

Interesting method. Would take up alot of paper though.

[gamerworld14]

cool! This is kind of the same method as lattice method, yet different :D

[patrick67]

It works well with numbers up to 4, but with higher numbers it is not much easier than normal calculating

[deltron05]

Very clever, it works very well ! It's a great way to teach kids math ! Thanks for sharing !

[OmegaDestroyer]

That's really neat. I never seen that before but it makes sense

[treehugginhippie99]

I dont get it...but cool! You got 'em right. Could you explain how?