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8
votes
1answer
132 views

Why is a symbol still found after changing its context?

It seems that we can change the context of symbols: In[1]:= x = 1 Out[1]= 1 In[2]:= Context[x] = "foo`"; But then x is still ...
5
votes
1answer
138 views

How to integrate Mathematica with other software

Mathematica is a fantastic platform for Mathematical analysis, physics, quantitative finance and most realms of scientific work. However, it doesn't serve well for general purpose programming, in ...
20
votes
0answers
757 views

How would I improve this Karaoke machine code?

I was looking at a large collection of Import/Export user suggestions the other day and it dawned on me that we finally have MIDI import in Mathematica 9, which is rather interesting since MIDI ...
10
votes
0answers
257 views

How is the mysterious Raw function used?

I have never seen an example use for the mysterious Raw function: Raw[h, "hexstring"] constructs a raw data object with head h, and with contents ...
2
votes
0answers
35 views

Where can I find detailed information about the SystemOptions?

I'm looking to optimize my Mathematica script, and I'm willing to go spelunking with low-level system options. The problem is that I've been looking in the Mathematica documentation, but there ...
1
vote
0answers
59 views

SystemException[MemoryAllocationFailure] with Memoized function

Version 10.1 Win7x64 Enterprise. This is more of a report than a question but others may have seen the same / have insights. I have some code (that I can't really post as it's too big) with a large ...
0
votes
0answers
50 views

Solving a big System of ODEs

I want to solve numerically a linear first-order ODE system with over 12000 equations. I used NDSolve with implicit options: ...
0
votes
0answers
47 views

Any way of solving this system of nonlinear equations with non integer powers?

I have a system of four nonlinear equations. Some of the exponents are fractions. I was wondering if this is what is causing NSolve to run for hours without giving ...
0
votes
0answers
81 views

No solution with DSOLVE

I have been trying to solve the following system of ODEs: \begin{eqnarray} ...