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Problem 473. old wine in a new bottle?

  • You have been given an apparently brand new unary function XXX,
  • that maps some ordinary scalars to scalars,
  • please guess if this XXX is 'new wine' or 'old wine',
  • that is functionally equivalent to an already built-in function,
  • such as sin cos sqrt log10 etc.,
  • for positive inputs between 0.2 to 0.8.


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23 correct solutions 86 incorrect solutions
Last solution submitted on Apr 28, 2015

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