this post was submitted on 20 Oct 2025
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Science Memes

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Fucking math... (lemmy.dbzer0.com)
submitted 1 week ago by Stamets@lemmy.dbzer0.com to c/science_memes@mander.xyz
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[–] One_Honest_Dude@lemmy.world 10 points 1 week ago (1 children)

I'm confused by this statement, the answer is 3. Why do all these extra steps for a wrong answer?

[–] idegenszavak@sh.itjust.works 20 points 1 week ago (2 children)

It's not wrong, it's close enough. And the point it works with more numbers and more type of calculation. Let's calculate 4% of 1243. That's the same as 1243% of 4, right, much easier to calculate by simply changing the 2 numbers... While my method is the same, by simply rounding everything.

And in engineering you always multiply/divide your results by a 1.5 or 1.25 safety factor, depending on situation. So you don't have to calculate exact results, just close enough. E.g. G is always 10m/s2. π is only 3.14, the other digits doesn't matter.

[–] Beacon@fedia.io 0 points 1 week ago

Huh? It's not "close enough", it's exactly accurate. 4% of 75 is 3 exactly. I don't know where the rest of what you wrote comes from. This post is about pure arithmetic