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There's an error in the `MaTeXInstall` Resource Function: evaluating it in Mathematica 12.3.1 (under macOS 11.5.2) causes a `Join` error.
With Mathematica 12.3.1 (under macOS 11.5.2), when I open the .cdf file for the Demonstration "Space-Filling Fractual Curves" (https://demonstrations.wolfram.com/SpaceFillingFractalCurves/), I'm getting a `$Failed` message as soon as I open the file....
Perhaps better to overload like this: toComplex[xy_] := Complex @@ xy toComplex[x_, y_] := Complex[x, y] Then one can do, for example, both the following... toComplex[{3, 4}] toComplex[3, 4] ... and get the same result. ...
In the Docuimentation Center, see tutorial/InputAndOutputInNotebooks#21892 and ref/menuitem/AutomaticNumbering.
What David Park writes is totally sensible: the built-in Mathematica syntax for graphics has definite limitations, especially for the newbie (and sometimes for the expert, too). As to his example with the disappearing `Tex`t given in the `Epilog`...
The missing corners on the left-hand plot are a not uncommon phenomenon when one is trying to use equalities for regions. I'm sure this has popped up before on Wolfram Community or mathematica.stackexchage.com but at the moment am not finding it. ...
One point I was making is that Mathematica ought to have a built-in function, what I named `ComplexParametricPlot`, that uses a complex-valued function of a real variable as argument — without the user having to explicitly break the complex...
Another possibility for clearing out definitions is to use the old package `CleanSlate` by Todd Gayley. See: https://library.wolfram.com/infocenter/MathSource/4718/
The cited CRC Press book, alas, has an astronomical price, even for the paperback edition.
I do not disagree with the result, but rather meant to suggest that some kind of rigorous justification is really needed for such things, as in the math.stackexchange reference I cited.