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seen Dec 6 at 23:48

Oct
28
comment How to change an option's value for a specific object?
@belisarius: Thanks for the tip; I'll keep that in mind from now on.
Oct
28
comment How to change an option's value for a specific object?
@belisarius: actually, I approached the question generally, from the standpoint of modifying an arbitrary option in an arbitrary object. I thought that this would be an easy-to-find topic. I was wrong.
Jan
15
comment How to order lexicographically the monomers of a parametrized polynomial?
OK, now I see what's going on: the output of the original expression I posted does not reflect the internal ordering.
Jan
15
comment How to order lexicographically the monomers of a parametrized polynomial?
Sorry, unfortunately, since my last comment I discovered some serious problems with this approach. I describe them in an EDIT to my post.
Jan
15
comment How to order lexicographically the monomers of a parametrized polynomial?
@chuy: thanks! (I was thrown off by the fact that the docs describe ParameterVariables as "an option for GroebnerBasis and PolynomialReduce.") If you care to post your comment as an answer, I'll be glad to accept it as such.
Sep
30
comment How to speed up multi-curve plotting?
Thanks! Switching to ListLinePlot made a huge difference. Please post your comment so that I can accept it.
Sep
29
comment How to embed graphic-element-specific metadata within a Graphics object?
@rm-rf: also, the Mathematica approach is far more specific than the approach I had in mind, namely, to associate metadata with individual elements, irrespective of whether the downstream use of it is based on tooltips or anything else. For example, a different interactive functionality would be one that lights up certain points depending on their associated metadata. This has nothing to do with tooltips. (I've added this example to my post.)
Sep
29
comment How to embed graphic-element-specific metadata within a Graphics object?
@rm-rf: what's orthogonal is the idea of wrapping the object (line, point, whatever) in the metadata, whereas my first instinct would have made it a property of the object...
Sep
29
comment How to embed graphic-element-specific metadata within a Graphics object?
@belisarius: thanks, that's what I was looking for. Mathematica's way of doing this sort of thing is, as usual, orthogonal to the first approach that comes to my mind, but it is always interesting...
Sep
25
comment How to examine the structure of Graphics objects
It's a situation that happens to me often in Mathematica SE, and more generally, cases in which I would like to accept more than one answer...
Sep
23
comment How to examine the structure of Graphics objects
...and got several replies, but it was the same problem all over again: these solutions work fine with simple examples but fail with the trees I want to visualize. What's worse, they all fail in utterly baffling ways, and this bizarreness of behavior greatly cooled my enthusiasm for this line of attack.
Sep
23
comment How to examine the structure of Graphics objects
Thanks! Trees are definitely an appealing for this task. It turns out, however, that for the Graphics objects I need most help with (namely, those generated by plotting commands like Plot), the standard TreeForm layout doesn't work: these trees have too many nodes at the same level, hence many node labels get obscured by the other ones. A conceptually simple fix would be to rotate the layout of the nodes (while keeping labels horizontal), but this is surprisingly difficult to do (at least for me). I posted a question about it,...
Sep
23
comment How to examine the structure of Graphics objects
Wonderful! Thank you so much for posting this!
Sep
21
comment How to debug error triggered by replacement rule?
@VahagnPoghosyan: The code in the second line comes from mathematica.stackexchange.com/a/32720/2464
Sep
20
comment How to expand multiple cells at once?
Thanks! I was actually looking for interactive commands (though I did not make that very clear in my original post). Your answer, however, gave me enough to search with. I found what I was looking for (namely, Ctrl + {) under Cell > Grouping.
Sep
20
comment Can TreeForm be displayed “sideways”?
@rm-rf: Maybe I'm not interpreting what I'm seeing correctly, but if I run TreeForm[x+y], and then run FullForm[%], what I get is Plus[x, y], and not Graphics[...]. This suggests that TreeForm does not really produce a Graphics object, but is merely a display directive... Again, I may not be interpreting what I'm seeing correctly...
Sep
20
comment How to examine the structure of Graphics objects
Extremely cool, many thanks!
Sep
20
comment How to examine the structure of Graphics objects
@Hector: this post is definitely motivated by the same situation as the one you link to, but it is not a duplicate. Here I'm asking about displaying techniques. For all I know, there exists a black-box Mathematica function that would be a perfect answer to this question, without shedding any direct light on the question in that other post.
Sep
20
comment How to examine the structure of Graphics objects
@ssch: yes, exactly. That one is very nice, BTW, thank you!
Sep
20
comment Structure of Graphics (esp. those produced by Plot, ListPlot, etc.)
@Hector: the answer is "not much", I'm afraid. I'm interested in 2D graphics at the moment, though...