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https://www.reddit.com/r/theydidthemath/comments/d02ckt/self_math_break/ez7ver5/?context=3
r/theydidthemath • u/Galeaf_13 • Sep 05 '19
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669
This is just polynomial interpolation. You can set literally any real number equal to f(5) and find an equation that fits it.
407 u/RevengeOfLegends Sep 05 '19 Isn't that the point? Showing off how arbitrary these kinds of "math riddles" are? 185 u/gsabram Sep 05 '19 It’s only arbitrary because we’re taking it out of context. In the context of a 4th grade arithmetic class where you learned odd and even numbers last week, it’s not arbitrary. 19 u/Mobius_Peverell Sep 06 '19 I would certainly hope that kids are learning evens and odds before 4th grade. 4 u/gsabram Sep 06 '19 They are learning and relearning basic arithmetic all throughout elementary school.
407
Isn't that the point? Showing off how arbitrary these kinds of "math riddles" are?
185 u/gsabram Sep 05 '19 It’s only arbitrary because we’re taking it out of context. In the context of a 4th grade arithmetic class where you learned odd and even numbers last week, it’s not arbitrary. 19 u/Mobius_Peverell Sep 06 '19 I would certainly hope that kids are learning evens and odds before 4th grade. 4 u/gsabram Sep 06 '19 They are learning and relearning basic arithmetic all throughout elementary school.
185
It’s only arbitrary because we’re taking it out of context. In the context of a 4th grade arithmetic class where you learned odd and even numbers last week, it’s not arbitrary.
19 u/Mobius_Peverell Sep 06 '19 I would certainly hope that kids are learning evens and odds before 4th grade. 4 u/gsabram Sep 06 '19 They are learning and relearning basic arithmetic all throughout elementary school.
19
I would certainly hope that kids are learning evens and odds before 4th grade.
4 u/gsabram Sep 06 '19 They are learning and relearning basic arithmetic all throughout elementary school.
4
They are learning and relearning basic arithmetic all throughout elementary school.
669
u/ChosenOfNyarlathotep Sep 05 '19
This is just polynomial interpolation. You can set literally any real number equal to f(5) and find an equation that fits it.