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[–] 58 points 2 years ago (11 children)

NaN is specifically not a number.

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  • [–] 74 points 2 years ago (5 children)
  • [–] 4 points 2 years ago (2 children)

    Well, at least it is used in place of a number. But what about QED.?

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  • [–] 19 points 2 years ago

    Pythagoras: Everything that exists is a number. Except irrational numbers. Fuck those things.

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  • [–] 16 points 2 years ago (3 children)

    I've taken like four or five advanced trigonometry courses and I still can't really define what trigonometry is. Mathematics is like Andrew Tate's Hustler University scam. If you take one class, it only exists to prove that you're a mark and sell you more classes.

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  • [–] 15 points 2 years ago (6 children)
  • [+] [S] 31 points 2 years ago* (last edited 2 months ago) (5 children)
  • [–] 24 points 2 years ago (3 children)
  • [–] 11 points 2 years ago (6 children)

    Do you have a version without the white lines?

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  • [–] 20 points 2 years ago (3 children)
  • [–] 8 points 2 years ago (4 children)

    If you change "number" to "vector" you'd have mathematicians agreeing with half of those.

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  • [–] 3 points 2 years ago (3 children)

    But a vector is a number, no?

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  • [–] 2 points 2 years ago*

    A vector is a thing that can be added together and scaled in "the intuitive way." That is, for example, if a and b are numbers and v is a vector, then av + bv = (a+b)v (vector addition distributes over scalar multiplication). The prototypical example is the collection of arrows rooted at the origin on the 2D plane, where addition has a simple geometric interpretation (you put the tail of one vector at the tip of another, the resulting point is the new tip) and scaling is "stretching." But it really could be anything that adds and scales.

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  • [–] 7 points 2 years ago (1 child)
  • data: NaN

    data: 1

    NaN is 0

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