Science Memes

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Fucking math... (lemmy.dbzer0.com)

submitted 4 days ago by Stamets@lemmy.dbzer0.com to c/science_memes@mander.xyz

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[–] affiliate@lemmy.world 29 points 4 days ago (2 children)

at this point in my life, as somebody with multiple math degrees, if i ever come across a situation where i need to multiply or divide numbers and one of them is bigger than 12, im going to use a calculator.

[–] darvocet@infosec.pub 9 points 4 days ago

Look at Mr big brain over here who learned his times tables. Sure hope nobody takes his lunch money.

[–] Objection@lemmy.ml 3 points 4 days ago (1 children)

Shitty Math Pro Tip: If you ever have to work with numbers larger than 10, convert it to scientific notation and then round to a single significant figure.

? = 0.04 x 75
? = (4 x 10^-2) x (7.5 x 10^1)
? ~= (4 x 10^-2) x (8 x 10^1)
? = 4 x 8 x 10^-1
? = 32 x 10^-1
? = 3.2
? ~= 3

See how easy that is? Here's another one:

? = 12 x 12
? = (1.2 x 10^1) x (1.2 x 10^1)
? ~= (1 x 10^1) x (1 x 10^1)
? = 1 x 10^2
? = 100

Bam, lock it in.

[–] Korhaka@sopuli.xyz 2 points 3 days ago

Depends on the sum though, like if its how many pizzas to buy you should round up.