# User Portlet

David J M Park Jr
Discussions
I would like to write a single command that will directly bring up a specific Documentation guide or reference symbol page. I do not want to indirectly display a search page that has the specific page as one option. The problem is that these...
Specifically, I would like to load a set of packages in a specific order,
The principle problem for me is that Mathematica V12.1 does not work on the Microsoft 7 OS, although WRI claims that both V12.0 and V12.1 work on that platform. (Version 12.0 does work.) The problem is that notebook sizes and font display are...
I installed Mathematica Version 12.1 and there is a huge change in its look. All the notebooks and palettes are HUGE. And yet if I adjust them to 75% or 50% magnification some of the important text becomes too small to read. The entire appearance...
Is there a Mathematica routine for the best least squares fit of an m-dimension multiplane to a set of data points in n-dimensional space? The method of Karl Pearson works in such a way that the m-dimensional fit is defined by m+1 points and by...
Is it possible to obtain the 'Details and Options' section and display, which appears on WRI documentation, when using Workbench to document Function pages.? (Instead of the older 'Details" section.) If so, how does one do it?
I have a need to solve multinomial equations efficiently. It is part of an algorithm for factoring a sum of equal grade exterior products in n-space into a single product. The algorithm runs into efficiency problems when I get to 6 or 7 dimensional...
In an extended expression I would like to shield certain parts of it against replacement. Some identical matching parts would be replaced by a rule applying to the larger expression but certain ones could be shielded and not replaced.
Consider the following code: step1 = Exists[x, x \[Element] Complexes, x^2 + 1 == 0]; Resolve[step1] Reduce[step1, x] FullSimplify[step1, x] FindInstance[step1, x, Complexes] giving True True ...
This posting is motivated by an earlier posting: [Plotting a specific branch of a multi-valued complex function][1]. However it uses an entirely different method to representi the function, showing the entire function and not just a single branch. ...