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Moderator of Mathematica.SE and Celtic goddess.

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Sep
4
comment Improving the source-code indentation in Wolfram Workbench
Changing these settings does change things, but not in the way Pillsy wants. I think the only answer that could be accepted is "this isn't possible unless Leonid comes up with a clever plugin".
Sep
4
comment How do you define an affine transformation that is translated by itself?
@ShaunH - those aren't coordinates: from the documents: "AffineTransform[{m,v}] gives an affine transform that maps $r$ to $m.r+v$." Your x and y are the elements of $v$.
Sep
4
comment How do you define an affine transformation that is translated by itself?
ttt is a function that applies a TransformationFunction to the input, rather than just defining the function. Hopefully my addition, especially ttpure clarifies the difference. For the case you mention in comments, try ttpure.
Sep
4
comment How do you define an affine transformation that is translated by itself?
You are welcome @ShaunH - have a look at my edit. It might be helpful. And by the way, welcome to Mathematica.SE!
Sep
1
comment Detecting spikes by shrinking WaveletPacket basis using a specific threshold
Welcome to Mathematica.SE! Please consider registering your account so that any upvotes you get on this answer are added to those you might get on future questions and answers. That way, over time you will be able to do more on the site (post graphics, edit things, etc).
Aug
30
comment Probability and distribution from actual data
@kale - you are most welcome. I count my own field (economics) as one where four significant figures is plenty. Indeed, more than three or four usually invites mockery and (justified) jibes of providing false precision.
Aug
29
comment How to collect q[t] from the following integration
@SunnySky, if you want to convert typeset math (TraditionalForm) input into InputForm you can use Hold[ yourexpression ] // InputForm and copy and paste the bit inside Hold[].
Aug
28
comment help with dynamic input
Welcome to Mathematica.SE Omid! I formatted your code for you; here is a guide that shows how you can do this yourself on future posts. Also, please consider registering your account so that any upvotes you get on this question are added to those you might get on future questions and answers. That way, over time you will be able to do more on the site (post graphics, edit things, etc).
Aug
28
comment How to mark visible points on a Plot3D?
@mbork have you seen Leonid Shifrin's book?
Aug
28
comment How to mark visible points on a Plot3D?
You're welcome - the Mathematica learning curve is steep, so it is understandable. Anyway, seeing the occasional "easy" question we can answer over our morning coffee (I am in Australia) is actually quite good.
Aug
24
comment Map a function across a list conditionally
Thanks! I wonder if the speed difference between Map (/@) and Apply at level 1 (@@@) is general?
Aug
23
comment Printing exported PDF graphics fails (version 8)
+1 this certainly works under Windows 7 using Mathematica 8.0.4 and Adobe Acrobat Pro X, at least for the test plot in the OP.
Aug
22
comment Printing exported PDF graphics fails (version 8)
Per F'x's answer to my question try Background->None and see if it works.
Aug
21
comment What is the fastest way to count square-free words?
@LeonidShifrin that fact isn't widely known - it would be a great self-answered question (if you have time)
Aug
18
comment Horizon Plots in Mathematica?
Welcome to Mathematica.SE, VanFalk! Please consider registering your account so that any upvotes you get on this question are added to those you might get on future questions and answers. That way, over time you will be able to do more on the site (post graphics, edit things, etc).
Aug
17
comment how to efficiently apply function to all pairs of a set (and collect the results)
@michar - I find Tuples to be pretty quick: but note, it has n*n pairs - things like 2 -> 2 are possible, thus the self-loops in the picture above.
Aug
16
comment copy paste merging expressions
Welcome to Mathematica.SE, Amatya! I have formatted your post so it is a bit easier to read. If you would like to know how to do this yourself, this page explains how.
Aug
16
comment Strange behaviour of Reduce for Mod[x,1]
Welcome to Mathematica @ StackExchange! Please consider registering your account so that any upvotes you get on this question are added to those you might get on future questions and answers. That way, over time you will be able to do more on the site (post graphics, edit things, etc). Also, I have formatted your code to make it easier to read. This link will show you how it's done for next time. And welcome again!
Aug
16
comment How to align rotated tick labels?
Related: mathematica.stackexchange.com/q/4791/8
Aug
15
comment Is there a clean way to extract the subspaces invariant under a list of matrices?
Thanks for this thorough answer. I don't think there is a problem given that you have provided a Mathematica implementation. Is the expected output of the first block of code a tensor? Using A[j] matrices of random normal numbers, with $n=3$ and $m=4$ I get a 9*3*3 tensor.