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I’m doing Calculus II at UFRN and I’m having a hard time analyzing certain forms on the 3D plane, so I decided to use Wolfram and its API to help me with my studies. This is a problem of an exercise list:
I’d like to plot on the Wolfram website using a documented 3DPloting function exemplified by Wolfram itself, you can check on this link.
My intuition led me to paste the suggested input in the documentation itself and in the example on the site but it did not work, just for the record follow the input:
Plot3d[{x 2 + y 2, -x 2 - y 2}, {x, -2, 2}, {y, -2, 2}, Regionfunction -> Function[{x, y, z}, x 2 + y 2 <= 4], Boxratios -> Automatic]
As well as the output:
I assume the query system website does not use documentation semantics, so the documentation is for another application other than this. Anyway, I need to plot the function of the list problem, but remember that I need to plot with the constraints on the 3D plane. And there is one more restriction: it should be done in the free system of Wolfram alpha, no matter how complex it is, as long as it is plotted the function as described above.