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18/20 answers
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Apr
15
comment Automatically highlight certain cells
Definitely use Grid, it's the more modern version for formatting tables. And it's backward compatible in the sense that the output of Grid in a text terminal is still formatted the same way as TableForm. The converse is also true: TableForm output in a notebook is internally formatted using GridBox.
Apr
14
comment A Box for the integral or partial derivative d
You mean you want template boxes to appear after typing Esc pd ESC without pressing CTRL-_ ? This would also mean that you need a special key to extend the number of boxes for each differentiation variable, if needed, right? What exactly do you mean by MakeBoxes trick?
Apr
13
answered setting real parameters in Hamiltonian matrix
Apr
13
answered iterative programming
Apr
13
comment Export to PDF on OS X, font missing on Windows
Or replace text by outlines, see here.
Apr
12
comment Getting Arg[z] to go from $0$ to $2\pi$
See also the arg I use here.
Apr
12
revised Operator operation
tested total angular momentum operator.
Apr
12
revised Operator operation
Added coordinate specification.
Apr
12
revised Operator operation
Added applications to angular momentum eigenfunctions
Apr
12
revised Operator operation
Added applications to angular momentum eigenfunctions
Apr
12
revised Operator operation
added link to related question
Apr
12
revised Operator operation
added 325 characters in body
Apr
12
answered Operator operation
Apr
11
comment Moving the location of the branch cut in Mathematica
Again, you are misunderstanding something if you think there's a mistake in my answer. My definition returns the correct result if you set the branch parameter in my function such that the branch cut is at $\pi/4$. However, that means, with my parametrization, that you have to choose $\theta= 3 \pi/4$. In fact, I used that parametrization only to correspond more closely to ZZZ's answer. I used a less confusing parametrization in this related answer.
Apr
11
comment Package for representation of groups (group theory)
@Wouter Your comment reminded me to look into the Cmobinatorica package - so I now added that as an answer.
Apr
11
answered Package for representation of groups (group theory)
Apr
11
comment Package for representation of groups (group theory)
Perhaps related: How to generate a matrix group?. This doesn't answer the question whether there exists a separate package, though.
Apr
11
comment Package for representation of groups (group theory)
Have you looked at the guide here?
Apr
11
comment Mathematica does not respect tensor order?
Related: Inequalities with assumptions and constraints
Apr
11
comment Moving the location of the branch cut in Mathematica
In any case, this is not an answer and should be deleted, perhaps after some more discussion (in case I overlooked something).