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MathGroup Archive 2012

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Re: Tips for writing correct, non trivial Mathematica Libraries

  • To: mathgroup at smc.vnet.net
  • Subject: [mg124499] Re: Tips for writing correct, non trivial Mathematica Libraries
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Sun, 22 Jan 2012 07:18:46 -0500 (EST)
  • Delivered-to: l-mathgroup@mail-archive0.wolfram.com
  • References: <201201211013.FAA10054@smc.vnet.net>

On 21 Jan 2012, at 11:13, Murray Eisenberg wrote:

> Whether a function whose natural domain consists of lists should coerce
> a scalar into a one-element list is purely a matter of convenience.
>
> That the built-in GeometricMean does do that whereas the documentation's
> example geom does not is perhaps just a sloppy oversight in constructing
> that example.



GeometricMean[x + y]

During evaluation of In[122]:= GeometricMean::vecmat1: Argument x+y is neither a non-empty vector nor a non-empty matrix. >>

GeometricMean[x + y]

Andrzej Kozlowski



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