Fun Stuff > CHATTER
Learning has occurred
Method of Madness:
WHAT
Thrillho:
See, I write fractions with a diagonal line - 1/3 for example, so this just never occurred to me. My mind was fucking blown by it. One of my lovers is a maths teacher so I sent to them and they were unsurprised...
Welu:
When I divide I tend to use the bottom left format so I don't even see the other ways too often.
Case:
--- Quote from: Welu on 31 May 2017, 17:59 ---When I divide I tend to use the bottom left format so I don't even see the other ways too often.
--- End quote ---
Huh - didn't even know that one existed ... looks a bit like 3*Sqrt[42] ...
I use the upper left notation for long division (omitting the "-" though, like 42:3=14) - i.e. never - and the bottom right one as default. Mostly because it's easy to visualize manipulating fractions, like:
a/b = c/d => a/c/d = b => a*d/c =b
where I'd imagine the c/d "flipping over" in the last step.
Aaaaaaand I just learned that one actually has a name, and it's called "cross-multiplication". Huh ...
TheEvilDog:
--- Quote from: Case on 31 May 2017, 20:15 ---
--- Quote from: Welu on 31 May 2017, 17:59 ---When I divide I tend to use the bottom left format so I don't even see the other ways too often.
--- End quote ---
Huh - didn't even know that one existed ... looks a bit like 3*Sqrt[42] ...
--- End quote ---
I know for the most part that's the method they use to teach long division in Primary School here.
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