Comment on I dunno

Digit@lemmy.wtf ⁨4⁩ ⁨months⁩ ago

• Cavemanfreak@lemmy.dbzer0.com ⁨4⁩ ⁨months⁩ ago

  I did (2+5)*(8-5).

  The problem is you can’t just add parenthesis willy nilly, that breaks the whole equation!

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  • ivanafterall@lemmy.world ⁨4⁩ ⁨months⁩ ago

    Well, it used to be a free country until common core and now this nonsense is the result. Numbers and punctuation mixed together. Pure chaos.

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• Nils@lemmy.ca ⁨4⁩ ⁨months⁩ ago

  plugged that into ghci as 5+2*(8-5), and it says 17.

  You might want to report that error. Or, did you mean 2+5*(8-5)?

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  • Digit@lemmy.wtf ⁨4⁩ ⁨months⁩ ago

    Oops! Typo. School failed me hard!

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    • victorz@lemmy.world ⁨4⁩ ⁨months⁩ ago

      How far along in school are you btw?

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      • Digit@lemmy.wtf ⁨4⁩ ⁨months⁩ ago

        over 20 years past giving up on school [in 2nd year of college], when they kept failing me.

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• A_Chilean_Cyborg@feddit.cl ⁨4⁩ ⁨months⁩ ago

  You do parenthesis first and then multiplications and then sums, you did parenthesis, then sums, then multiplications, wich is wrong.

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  • merc@sh.itjust.works ⁨4⁩ ⁨months⁩ ago

    You don’t necessarily have to do parentheses first. What matters is that the things inside the parentheses are a group that you can’t break apart. If you have 10÷2+3-2*(2+1) you can do the division first 5+3-2*(2+1) then the addition outside the parentheses 8-2*(2+1) It’s just that before you do the multiplication of the term outside the parentheses, you have to handle the parentheses group, so you get 8-2*3 -> 8-6 -> 2

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