On Sat, Jan 1, 2011 at 6:25 PM, Dr. David Kirkby
<david.kir...@onetel.net> wrote:
> You may recall some discussions some time ago about using WolframAlpha to
> make comparisons with Sage results. Alex Ghitza in particular thought we
> might be breaking the terms of the usage. I asked Wolfram Research, and
> here's their reply. (What I asked is written below their reply).
>
> -------- Original Message --------
> Subject: [WR #2158917] Could you please clarify terms of use for
> WolframAlpha
> Date: Mon, 27 Dec 2010 12:20:23 -0600
> From: Jessica Helfrich via RT <permissi...@wolfram.com>
> Reply-To: permissi...@wolfram.com
> To: david.kir...@onetel.net
>
> Dear Dr. David Kirkby,
>
> Thank you for your inquiry. We are happy to allow Wolfram|Alpha links and
> results to be used for the limited purpose of non-automated querying for
> verification and bug-testing purposes within the Sage test suite. We trust
Note the "non-automated" part. Perhaps this means they don't give
permission to do something like:
for n in range(100):
f = random_function()
if numerical_compare(f.differentiate(algorithm='maxima'),
f.differentiate(algorithm='wolfram|alpha')):
print f
I guess you can do something like this:
sage: some_input_line
some_output
and just happen to verify that with Wolfram|Alpha for yourself (say
during the review process). Perhaps you could put a comment like
this:
sage: some_input_line # test verified using Wolfram|Alpha
some_output
However, it sounds like you also don't get permission to do this:
sage: some_input_line(...) == wolfram_alpha('....') # optional -- internet
and actually run such tests.
-- William
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