Re:Stepping into math: Open-sourcing our step-by-step solver
by olalonde on Thursday January 19, 2017 @09:34PM
(#13441369)
What is the expected way to show the work on this? IIRC (long time ago), the method I learned for computing cube roots involved knowing the cubes of single digit numbers (e.g. 3^3 = 27, being one of them).
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Re:Stepping into math: Open-sourcing our step-by-step solver
by vkou on Saturday January 21, 2017 @02:33PM
(#13451643)
Presumably, it consists of verifying that 3 x 3 x 3 = 27. But who the hell knows.
Alternatively, maybe it expects a binary search through the decision space? 2 x 2 x 2 = 8 < 27.
Too bad this breaks down when the problem is trivially adjusted - not in the X^3 = 28 way (As binary search can approximate that), but in the X^3.3 = 27 way.