User Portlet
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| Hello Eric, Thanks again for your comments and suggestions, I really appreciate all the time you have spent looking at my examples. I need to take time to experiment with the ideas shared but I will post a response to let you know if I overcome my... |
| Hello Hans, Many thanks for this, problem resolved. I don't know what use the Snooper would be for an ordinary MMA user like me. Once again, thank you for your help. David |
| Many thanks for all of these ideas. The issue, it turns out, is that LegendreP, by default, attempts to return an answer in polynomial form. As the order increases, the coefficients in the polynomial get enormous and all sorts of numerical horrors... |
| Example: p = {a, I b}; q = {c, I d}; In[3]:= p . q Out[3]= a c - b d Another: z = {I 3, I 4}; u = {I 5, I 6}; In[6]:= z . u Out[6]= -39 |
| I am running 13.1 on a MacBook under Big Sur 11.7. On two occasions, the software crashes on launch with error code 814. This error persisted for several days, and it seemed to be resolved by an update for Safari, but this may have been a... |
| David, I have a well developed tensor program, Tensorial, that I could share with you. It has all the standard processing of tensor index notation. And I have another solution, which is even better if you are interested in the mathematics of... |
| Hello John, Many thanks for this. I tried it and it suits my needs perfectly. David |
| Perhaps my post http://community.wolfram.com/groups/-/m/t/1143419 could be helpful. Regards, Hans |
| You can change the default font back to "Courier New" by evaluating: SetOptions[$FrontEnd, StyleHints -> {"CodeFont" -> "Courier"}] This option isn't recognized by previous versions of *Mathematica*, hence it is new in version 11.0.0. It is... |
| Hi David. You are quite right that I am using the Drawing Tools to try and assist documenting Notebooks. These have always been a little quirky to use, especially when selecting colours for the various graphics primitives. In 10.4.1 this quirkiness... |