ma...@mendelu.cz wrote:
> 
> 
> On 20 Bře, 13:53, kcrisman <kcris...@gmail.com> wrote:
> 
>> something like this, because there are too many similar things to
>> catch.  I also believe Maple does not plot the negative values.
>>
> 
> You are right, Maple plots x^(1/3) only for positive x. As a side
> effect, if you try to plot the function y=(x^2-1)^(1/3) which I have
> seen in many textbooks, you get only partial answer.
> 
> What about Mathematica? The online tools at 
> http://calc101.com/webMathematica/sketch.jsp
> consider also negative x. Is this default setting in Mathematica?


Mathematica also doesn't plot the negative real cube root.  It's the 
same as Sage.

Jason


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