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Glitch in the matrix (ani.social)

submitted 1 year ago by [email protected] to c/[email protected]

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[+] [email protected] 8 points 1 year ago (6 children)

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[–] [email protected] 9 points 1 year ago* (last edited 1 year ago) (25 children)

Nope. It’s PEMDAS at work.

8/2(2+2)

8/2(4) - Parentheses

8/8 - Multiplication

1 - Division

Modern phone apps seem to be notorious for getting order of operations wrong. I’ve never had this issue with a dedicated calculator.

Edit: my petard has been hoisted

[–] [email protected] 6 points 1 year ago

I've always been taught that + and - were interchangeable with each other for pemdas, as well as * and /. So the hierarchy is

parenthesis
exponents
multiplication, division
addition, subtraction

[–] [email protected] 5 points 1 year ago

Multiplication and division are same level just as addition and subtraction are same level. So it would be worked multiplication and division in order from left to right.

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[–] [email protected] 7 points 1 year ago (11 children)

Ah damn it. It took me ages to find a calculator app that fits my needs..... And now I find out it works like the one on the right.

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[–] [email protected] 7 points 1 year ago (24 children)

I don’t understand why people say Maths. Math encompasses every single type of Math. Maths is just wrong.

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[–] [email protected] 5 points 1 year ago* (last edited 1 year ago) (11 children)

I don't think you encounter this one very often, but the technically correct -2^2 = -4 has a higher chance of ruining your day.

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