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Jan
8
revised How can I define a ⊕ operator?
detailed explanation
Jan
8
revised How can I define a ⊕ operator?
added 5 characters in body
Jan
8
answered How can I define a ⊕ operator?
Jan
6
comment How can I get an approximate contour plot from a 3D plot?
Forgot to say that there is the caveat that the orientation wasn't uniform (some lines from left to right, others from right to left - kind of, you get the point) and I fixed that by hand based on my particular case.
Jan
6
comment How can I get an approximate contour plot from a 3D plot?
See this mathematica.stackexchange.com/questions/20281/…. I have used it and works.
Jan
6
revised Specific Mathematica algorithms, for example LU Decomposition
added 148 characters in body
Jan
6
answered Specific Mathematica algorithms, for example LU Decomposition
Jan
6
answered Inaccurate data range in ListPlot
Jan
6
comment Pathological behaviour when evaluating a sum
When it comes to manipulating expressions, one needs to be aware of whether a built-in has or not hold behaviour as that affects how it works. And some expression handling built-ins don't have that (notably Integrate and D), allowing you to generate a expression before handing that over to the built-in, but others do. That's the way it is.
Jan
6
revised Pathological behaviour when evaluating a sum
deleted 40 characters in body
Jan
6
answered Pathological behaviour when evaluating a sum
Jan
2
comment Estimating a distribution using binned data
IMHO this should be tackled using Bayesian estimation: take an uninformative prior, add binned data and derive a posterior dist for model parameters. I believe this is worth a research paper.
Jan
2
revised Estimating a distribution using binned data
previous thoughts
Jan
2
answered Estimating a distribution using binned data
Jan
2
awarded  Critic
Jan
1
revised Prevent graphics render inside held expression
added 9 characters in body
Jan
1
answered Prevent graphics render inside held expression
Jan
1
revised What are the most common pitfalls awaiting new users?
added 187 characters in body
Jan
1
comment Is learning to use Mathematica useful for pure theoretical research in Mathematics and Computer Science?
And there are software defects. Here a surprisingly simple to reproduce reported recently in ArXiv arxiv.org/abs/1312.3270 involving big integers and matrix manipulation.
Dec
31
comment What is a type in Wolfram Mathematica programming language?
Let me add to the above. In programming language theory a Type is not just a set of values, but also the operations available to them. In Mathematica a value with a particular head can be considered of that 'type' but regarding the operations available to such head, Mathematica allows you to add and remove rules for those values, so types are defined at runtime and can change. In addition, upvalues and downvalues enrich the picture quite a bit.