710
I dunno (piefed.cdn.blahaj.zone)
submitted 9 months ago by [M] to c/science_memes@mander.xyz
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[–] 38 points 9 months ago (2 children)

2 5 8 5 - × + for you RPN fans =)

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  • [–] 4 points 9 months ago (2 children)

    Actually:

    2 5 8 5 - x +

    10 keystrokes

    I use RPN on my phone calculator for fun but it can also be annoying sometimes.

    On my CASIO FX-260 Solar II calculator (super cheap, really nice and simple but also powerful) that would be:

    2 + 5 ( 8 - 5 ) =

    9 keystrokes

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  • [–] 3 points 9 months ago (2 children)

    Im terrible at math, what is this though?

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  • [–] 23 points 9 months ago* (1 child)

    RPN or Reverse Polish Notation is a notation for calculators to be less ambiguous. The last numbers use the operator to their right, repeat. So no need for parenthesis or PEMDAS.

    • 2 5 8 5 - × +
    • (8 - 5 = 3)
    • 2 5 3 × +
    • (5 × 3 = 15)
    • 15 2 +
    • (15 + 2 = 17)
    • 17
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