Happy Mathematical Neʷ Yeᵃʳ.  

Dec 31, 2020 4:27 PM

BlackNBlue7

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Constructing a square of equal area to a polygon.

Japanese multiplication

!!! HaPPy nEw YeaR eveRYone !!!

5 years ago | Likes 2 Dislikes 0

I just passed calculus with a c. Time to forget all of this.

5 years ago | Likes 4 Dislikes 0

5 years ago | Likes 4 Dislikes 0

#1 to the tune of https://www.youtube.com/watch?v=Uv5zKd1rqcM

5 years ago | Likes 6 Dislikes 0

Happy new year from a math teacher! :D

5 years ago | Likes 8 Dislikes 1

The “Japanese multiplication” is just a visualization of longhand multiplication.

5 years ago | Likes 4 Dislikes 0

The "Japanese math" example always irritates since it's completely ridiculous when you move up to something like 87 x 688.

5 years ago | Likes 6 Dislikes 0

This gives me traumatic flashbacks to crying in maths lessons

5 years ago | Likes 3 Dislikes 0

5 years ago | Likes 4 Dislikes 0

#1 y=log_a(x) is upside-down, y=sin(x) is also flipped

5 years ago | Likes 5 Dislikes 0

5 years ago | Likes 2 Dislikes 0

#9 this is actually (more or less) how pythagore was proven by ancient greeks

5 years ago | Likes 5 Dislikes 0

5 years ago | Likes 2 Dislikes 0

Better: transform the pentagon to one big triangke first.

5 years ago | Likes 2 Dislikes 0

I love math. I regret not doing undergrad in it ? ? ? ?

5 years ago | Likes 4 Dislikes 0

5 years ago | Likes 3 Dislikes 0

Haven’t seen a few of these before. +1 and happy new year!

5 years ago | Likes 55 Dislikes 0

I particularly enjoyed the last one.

5 years ago | Likes 4 Dislikes 0

I’m a 40 yr old mechanical engineer and the visual Pythagorean theorem blew my mind.

5 years ago | Likes 3 Dislikes 0

One of mine v

5 years ago | Likes 14 Dislikes 0

That's really cool!

5 years ago | Likes 5 Dislikes 0

5 years ago | Likes 4 Dislikes 0

Well now I officially feel stupid for the new year thanks

5 years ago | Likes 3 Dislikes 0

5 years ago | Likes 86 Dislikes 0

I posted this to imgur a LONG time ago (I may have even been first lol) +1 happy new year!

5 years ago | Likes 7 Dislikes 1

OPA!

5 years ago | Likes 17 Dislikes 0

I started crying reading this. Im stupid.

5 years ago | Likes 3 Dislikes 0

#4 is beautiful. HNY Everyone.

5 years ago | Likes 4 Dislikes 0

5 years ago | Likes 4 Dislikes 1

5 years ago | Likes 218 Dislikes 3

fuiyoh

5 years ago | Likes 14 Dislikes 1

Steve Harvey's looking kinda rough these days

5 years ago | Likes 3 Dislikes 0

Who drains wet rice in colander?!

5 years ago | Likes 10 Dislikes 1

Now rinse the rice with cold water after cooking

5 years ago | Likes 6 Dislikes 0

If your rice too wet, you fucked up

5 years ago | Likes 5 Dislikes 0

I put knee down so excited over maths

5 years ago | Likes 15 Dislikes 1

Hiyahhhhhh

5 years ago | Likes 50 Dislikes 1

Username does NOT check out. Big phony over here

5 years ago | Likes 3 Dislikes 0

My username isnt ionlycommentwithsteveharvey

5 years ago | Likes 3 Dislikes 0

Wait is his name actually steve?

5 years ago | Likes 2 Dislikes 0

5 years ago | Likes 2 Dislikes 0

Nice! Did you know #2 can be done completely by hinged dissection?

5 years ago | Likes 6 Dislikes 0

I feel like #2 made things way harder than necessary after getting the rectangles.

5 years ago | Likes 10 Dislikes 0

You can show how to disassemble and reassemble. #2 seems like it's going to do that but doesn't quite

5 years ago | Likes 1 Dislikes 1

Even before that. Once you have the triangles you can calculate their areas, add them together, take the root. Done.

5 years ago | Likes 5 Dislikes 0

This is what I was thinking. I guess it's a nice proof, but if you have the actual numbers all you need is the area of the polygon.

5 years ago | Likes 2 Dislikes 0

Though I think the idea is that this can all be done with a compass and straightedge.

5 years ago | Likes 1 Dislikes 0

I can't believe I used to understand this

5 years ago | Likes 244 Dislikes 0

Ok but how do I do taxes?

5 years ago | Likes 1 Dislikes 1

Just reread a paper I wrote in grad school and it took me a while to understand it. The struggle is real

5 years ago | Likes 8 Dislikes 0

Bro I'm studying it rn and I still don't understand lol

5 years ago | Likes 3 Dislikes 0

Me and math were never good friends. I can count on a hand with 4 amputated fingers how many tests I scored positive during middle and high.

5 years ago | Likes 2 Dislikes 0

Such an underrated comment

5 years ago | Likes 31 Dislikes 0

My exact thoughts watching all of these things.

5 years ago | Likes 2 Dislikes 0

i used to understand and love it . had stopped using it since i stareted working in a unrelated fields. 5 years later i found my old ->

5 years ago | Likes 14 Dislikes 0

books and notes . i could not understand a single line of my own writing. (analisi matematica 3 fuck that shit).

5 years ago | Likes 9 Dislikes 0

You understood?

5 years ago | Likes 1 Dislikes 0

when u do it every day it's not that hard. stop for 6 months and it's ununderstandable

5 years ago | Likes 4 Dislikes 0

That’s cool. What job was that?

5 years ago | Likes 1 Dislikes 0

I studied mechanical engineering but I work as a software developer so no complex math is involved

5 years ago | Likes 2 Dislikes 0

Gotcha. Sounds pretty cool.

5 years ago | Likes 1 Dislikes 0

Dont you just mean derstandable?

5 years ago | Likes 3 Dislikes 0

wait the opposite of understandable is just derstandable ? this makes no sense. i mean if the prefix un is for the negation "unbelievable"->

5 years ago | Likes 2 Dislikes 0

"unhappy","unfuckable" ... you are thelling me the understandable is the negative version ? i mean the clear word in getting things->

5 years ago | Likes 1 Dislikes 0