[Maxima] Power function: Simplification of 0^a
drdieterkaiser at web.de
Sun Jan 17 10:26:52 CST 2010
Am Sonntag, den 17.01.2010, 07:56 -0800 schrieb Richard Fateman:
> The arguments for value of 0^0 , at least in isolation, are presented in
> where the value 1 is suggested.
> Sometimes a distinction is made between 0.0^x and 0^x and between
> types x=integer and x=real. (see link).
Yes, I know about the discussion related to the value of 0^0. But I have
not enough mathematical knowledge to decide what will be the most
convenient implementation. Therefore, I have chosen the way Maxima has
implemented this case. Maxima gives 0^0 -> undefined.
By the way: I have forgotten to mention that we have a fourth way to
implement an unknown sign. We can leave the expression 0^x unsimplified.
I have tried this too. Here are two examples:
This works for more complex expressions too:
The testsuite will work with implementation too. Again we only get three
errors which are related to the sqrt function.
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