Mathematica

How do I Rasterize in TraditionalForm
Basically, I want to get the dimensions of an object as it will be shown in a Graphics as a label, which uses TraditionalForm by default and applies the Smaller style (as far as I can tell). For example, the following shows the problem: object = "TitleText" TraditionalForm[object] Rasterize[TraditionalForm[ob... 27 Sep 2009 07:59

How to plot with a reversed Y-axis?
Hi,guys I want to plot with a reversed Y-axis, that is to say, along the Y- axis direction the numbers become smaller. For example: ListLinePlot[Table[{i, i^2}, {i, {1, 2, 3, 4, 5, 6}}], PlotRange -> {{0, 8}, {50, 0}}] However it does not work. Can anybody help with this? Thanks in advance! ... 27 Sep 2009 07:59

SumOfSquaresRepresentations
To be on the safe side: ClearAll[d, n, x, a, SumOfSquaresRepresentations]; Take this from the help: SumOfSquaresRepresentations[d_, n_] := Module[{x, a}, (a = Array[x, d]) /. {ToRules[Reduce[a.a == n, a, Integers]]}] Let's apply it: SumOfSquaresRepresentations[3, 15] {x$110[1], x$110[2], x$110[3]} An... 25 Sep 2009 06:28

A question about parallel computation in mathematica
Hi Everybody, Recently I was looking through many parallel computation example in the documentation of Mathematica 7.0.1. If not very clear and adequate those documentation looks pretty impressive at the first glance. Hence I decided to do some Mathematica implementation of the small piece of software named Supe... 29 Sep 2009 08:31

Memory problems when solving equations
Hi I'm trying to solve a system of polynomial equations using various inbuilt functions namely Solve[] and Reduce[]. When ever I try this the kernel crashes as it runs out of memory. I was then advised to manually try to solve it by calling GroebnerBasis[] but this also resulted crashed the kernel.... is ther... 24 Sep 2009 08:11

Table and ParallelTable. Strange behaviour.
Hi, can someone confirm the following: In[12]:= Table[j, {j, 0.1, 0.3, 0.1}] Out[12]= {0.1, 0.2, 0.3} as expected. But In[13]:= ParallelTable[j, {j, 0.1, 0.3, 0.1}] Out[13]= {0.1, 0.2} and it seems to be restricted to the first range spec since In[14]:= ParallelTable[{i, j}, {j, 0.1, 0.3, 0.1}, {i,... 18 Sep 2009 06:38

GUIKit: How to use a widget "Tree"?
I want to develop a one Mathematica application with GUIKit. I need for my application a Widget "Tree". But there is almost no documentation by Mathematica for this Widget. How can I add/remove a new node to/from a Tree? ... 18 Sep 2009 06:38

PlotRange
Dear All, I am generating some 2D images with MatrixPlot and using the option PlotRange->{All,All,All}. I know the range that the plotting routine is using for the x- and y- directions. The values of the points (i.e. the z- scale) is changing every image. After plotting, I would like to know what are the values ... 19 Sep 2009 06:04

Problem with NDSolve in Mathematica V4
I experienced some difficulties with solving a 1D thermal conduction problem with my old Mathematica (V4 for Students): - spec. heat 1094J/kgK, density 354kg/m, thermal conductivity 0.05 W/ mK - domain length: 2mm - Dirichlet boundary condition: temperature at both ends is risen at a heating rate of 10K/min start... 17 Sep 2009 06:47

Speed up calculating the pair correlation function for 2D point data
Hello, I would like to calculate the pair correlation function normalized to 1 for some 2D point data. I.e. I need to find the mean density of points at distance r from any point, normalized to 1. I am looking for advice on speeding this up. This is the current implementation I have: The pcfOne functio... 16 Sep 2009 06:13