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1d
comment Having used Mathematica as a “gateway” language, where to from here?
Mathematica has tried to capture some Perl mojo with its regular expression capabilities, and one can write pretty opaque code in Mathematica too, so I can see the overlap...
1d
comment Having used Mathematica as a “gateway” language, where to from here?
I upvoted this because one has to know at least one non-commercial language in order to be more independent and mobile.
1d
comment Having used Mathematica as a “gateway” language, where to from here?
Nice overview (+1), agree on the importance of Javascript. But Python is still my favorite technology integrator. And you forgot to address how best to learn Do loops... (fortunately).
1d
comment Having used Mathematica as a “gateway” language, where to from here?
@LeonidShifrin "do more powerful things..." - what things? Anyway, since you've obviously invested a lot of time in the answer, I won't insist one way or the other.
1d
comment Having used Mathematica as a “gateway” language, where to from here?
I honestly think this isn't answerable in a definite way.
May
21
comment Visualizing vector spherical harmonics
@QuantumDot Thanks for the bounty! I'll get back to the field line issues in the next day or so...
May
21
comment How to type a capital 'E' in Mathematica 9 using 'ToExpression' and 'TeXForm'?
Thanks - I was actually wrong about requiring \text{} wrappers. It works without that, so it's a little simpler than I wrote at first.
May
20
comment Visualizing vector-spherical waves
I've worked around the error message in version 9 by perturbing the initial points for the field lines. I also know what could be changed in the field line plotting function to avoid the error - but I'll make those changes later... hope the example works properly now.
May
20
comment How can I convert a plot to pdf or eps without errors?
@Mechanicalsnail It worked out of the box. The linux server isn't under my control, so I'm not sure about the font related details of the Mathematica installation.
May
20
comment Visualizing vector-spherical waves
You're right, I see this in version 9, too. Not in version 8 - but it suggests that I have to catch some NDSolve failure... hopefully I can fix that soon (maybe not today, though).
May
19
comment How to type a capital 'E' in Mathematica 9 using 'ToExpression' and 'TeXForm'?
As to the reversed order: use the third argument to TexForm as I mention in the second link above: ToExpression["U = mc^2", TeXForm, HoldForm]. I used a letter U that doesn't have a built-in meaning.
May
19
comment How to type a capital 'E' in Mathematica 9 using 'ToExpression' and 'TeXForm'?
In addition to the above link, I just remembered an extended version of the same answer that I posted later.
May
19
comment How to type a capital 'E' in Mathematica 9 using 'ToExpression' and 'TeXForm'?
The general topic of your question is addressed in this other question: Unable to convert TeX input into mathematica. The specific case of the letter E is addressed in ogerard's answer.
May
19
comment How can I convert a plot to pdf or eps without errors?
I tried it on a Linux server with version 8 and could not reproduce the problem. The output of Export["p.pdf",%] looks identical to that in the notebook. I don't have version 9 on Linux, so I can't check any further, unfortunately.
May
19
comment How can I convert a plot to pdf or eps without errors?
I've added your images. Could you please include the code to reproduce the plots? See the help page for how to format code.
May
19
comment Cannot solve system of linear equation sums?
I just tried my LinearSolve idea and again can't get it to work in version 9 while it works in 8. See my edit.
May
18
comment Cannot solve system of linear equation sums?
I added my version of the code to the question to make it easier to reproduce.
May
18
comment Nontrivial solutions of equation
Try to do it by hand and see if you can get a smaller answer, without knowing anything about the matrix coefficients and $\lambda$.
May
18
comment Nontrivial solutions of equation
How about using Eigensystem? Eigensystem[A]
May
17
comment Doing vector manipulations on Mathematica
Those aren't vectors at all. The contain vectors, but they're scalars. What do you mean by "manipulate"? Surely not Manipulate, but what exactly?