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Mar
1
reviewed Close Tricky Poisson distribution question
Mar
1
reviewed Close NDSolve printing error message NDSolve::ndode
Feb
28
answered Iterating over a list, in a functional way
Feb
28
answered Replace elements in matrix to make it symmetric using automated procedure
Feb
28
comment Strange behavior when setting NumericQ of a symbol
Confirmed with Mathematica 10.0.2 on Windows. I suggest you report it as a bug to WRI.
Feb
28
awarded  Favorite Question
Feb
27
reviewed Close Graphing a vector
Feb
24
comment Problem in evaluation of a solution and plotting
You generate dphi with a single x value for each of the monotonically increasing y values. So you cannot possibly expect to get a plot like the image you posted.
Feb
24
comment How can I define or use a new coordinate system in Mathematica?
It looks like all the details of coordinate systems are in SymbolicTensors`CoordinateChartDataDump`mappingInfo so perhaps one could add another system by adding more rules there, but it doesn't look like much fun, and there's no guarantee it would work.
Feb
23
comment Inconsistency in arithmetic on list elements
@RalphDratman, if you haven't already, I recommend reading the page on Evaluation, it will help you to understand how Mathematica proceeds through the evaluation and why attributes like Listable work the way they do.
Feb
22
answered Inconsistency in arithmetic on list elements
Feb
21
comment The efficiency compare between Flatten[#, 1] & and Join @@ # &
You might like also to consider the case of packed arrays (use Range[2] in place of {1,2} in your lists)
Feb
20
comment What does IndexBy do and how exactly does it work?
@episanty, I think all system symbols will show up in the autocomplete suggestions, though many are undocumented. For a complete list of such symbols: Select[Names["*"],MatchQ[ToExpression[#<>"::usage"],_MessageName]&] (it takes a minute to run).
Feb
20
comment Duplicate mapped elements in Riffle
Nice alternative to using SetAttributes there, I'll have to remember that!
Feb
19
answered Slow application of `Outer` on a matrix
Feb
19
revised Model without graphics
fixed greek
Feb
17
reviewed Leave Open How to open a .nb file directly in mathematica by double clicking?
Feb
17
reviewed Close How to evaluate some parts of an expression inside Hold?
Feb
17
reviewed Close Code optimization, Pad missing keys and Total part of values
Feb
17
reviewed Close Iterating over a 2D list