User Portlet
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| I am trying to understand what the requirements are for a notebook to run successfully on the Wolfram Player on my iPad. The program runs fine in Mathematica 12 on my desktop, but won't do anything in Player. I have followed all the requirements I... |
| What are the differences between the basic and full access capabilities of Wolfram Cloud? |
| As an example, suppose I have a table such as ![enter image description here][1] that is in the form of a Mathematica Dataset. In Excel I can select rows with specifications such as column a >.6 and column d either g or h. I am able to... |
| I am computing a table of orbital parameters where I can change some orbital properties. The first time I run the script after a global clear (ClearAll["Global`*"]), the script fails with an error message but if I run it again, it works correctly. I... |
| I have run into a problem with a table of numerical integration results. The code that creates the apparent bug is re = ImplicitRegion[x^2/4 + y^2 + z^2 == 1.0, {x, y, z}]; v[x0_, y0_] := 1/Sqrt[(x - x0)^2 + (y - y0)^2 + z^2]; ... |
| Unless I am totally screwed up, the field inside a surface with uniform charge density should be 0 so the potential should be a constant. But when I attempt to numerically compute the potential interior to a surface I do not get a constant. The... |
| I want to compute the surface area of a spheroid. If I define the spheroid as an implicit region in 3 dimensions and integrate it numerically I get the correct answer. But if I define the spheroid as an ellipse of rotation and integrate then I am not... |
| I had been trying to compute some integrals numerically over a region defined implicitly and was getting some results that didn't seem to make sense. It is possible that I am using the implicit region definition incorrectly. The following code is a... |
| I have found what I am certain is a bug in wolfram cloud. I generate the following code in Mathematica and then save it to the cloud. Clear["Global`*"] List@@Expand[(1+x)^6]/.a_. x^b_.->{b,a} This initially runs correctly in the cloud... |
| This is probably a very stupid question, but I can't find the answer in the documentation. I have a text cell for which I would like to insert the value of a symbol. For example, n=7 (where this line is a separate text cell) I would... |