Version-specific issues for Mathematica 7 (other than bugs).

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6
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0answers
294 views

NullSpace[_, Method->“OneStepRowReduction”] is sometimes wrong; how can I work out when this happens?

Edit 2015: Has this been fixed yet? (This is on MMA 7.0.1.0 on OS X) I've just found a large matrix m for which NullSpace[m] ...
4
votes
0answers
84 views

Error with String patterns producing Removed[“$$Failure”]

While working on How to capitalize the first letter of each word in a string and trying to understand why certain characters were not considered letters I tried this: ...
2
votes
0answers
81 views

RDPStruct.exe: what is it and why are there so many?

I have an old (v7) webMathematica system running and it seems to generate a lot of RDPStruct.exe processes. First, what does this "Converter" do? GIF.exe and JPEG.exe are obvious, but "RDPStruct" ...
0
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0answers
51 views

How to define an exclusion zone for NDSolve

I need to numerically integrate a differential equation and define two exclusion zones to stop the integration. The Mathematica code looks like this : ...
0
votes
0answers
47 views

Random phases at each run in a wave superposition

I need to define a function which generates a random real number between 0 and $2\pi$, as a random phase constant for a wave superposition. The output should be different each time I re-run the code, ...
0
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0answers
218 views

Distance between ticks and axes

I've created a plot using the following code: ...
0
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0answers
186 views