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Sep
15
answered Find arc length
Sep
15
comment Find arc length
FYI ArcLength: Introduced in 2014 (10.0)
Sep
13
awarded  Enlightened
Sep
12
revised Plotting an orbit using first principles
fix formatting
Sep
12
comment Join decimal part
similarly: ToExpression[StringJoin[Riffle[ ToString /@ #, "."]]] & /@ Partition[{0, 1, -2, 259}, 2]
Sep
12
comment Join decimal part
Sounds like you are after a kludge solution to a problem that ought to be fixed on the matlab side.
Sep
12
revised Splitting a string into substrings of length 1 and 2
added 40 characters in body
Sep
12
revised Splitting a string into substrings of length 1 and 2
added 1236 characters in body
Sep
12
revised Splitting a string into substrings of length 1 and 2
added 286 characters in body
Sep
12
revised Splitting a string into substrings of length 1 and 2
added 435 characters in body
Sep
12
answered Splitting a string into substrings of length 1 and 2
Sep
12
comment Combining more than two lists by first column as index
not really a dup but it is a straightforward modificaiton: {#[[1, 1]] , Flatten[ Rest /@ # ]} & /@ Select[GatherBy[ Join[list1, list2, list3] , #[[1]] &], Length[#] > 2 &]
Sep
12
revised Precision problem with numerical solution of a differential equation
added 263 characters in body
Sep
12
answered Precision problem with numerical solution of a differential equation
Sep
12
comment ReadList or any other command to read in blocks of very large numbers
possible dup: mathematica.stackexchange.com/questions/33498/…
Sep
12
comment Plotting an orbit using first principles
Fair enough to use mathematica to learn procedural programming, but you need to show what you have tried. As is we dont know where to begin. The mathematica equivalent of Fortran do is Do ..
Sep
12
comment Problem with importing numbers resulting from an executed file in Mathematica
on further thought, if the exponent is the issue you should still get the result imported as a string. Can you clarify what you mean by " it seems like these values are not imported "
Sep
12
comment Problem with importing numbers resulting from an executed file in Mathematica
The simplest thing would be to fix your fortran so you don't loose the 'E' with the three digit exponent. Show the fortran write/format statements if you need help with that.
Sep
11
comment how to find the vector intersection in a collection of triangulated 3D points?
note this can be done in closed form: use your PointPlaneIntersection on each triangle, then the resulting 2d insideness check has an analytic formula. This probably is a tad faster than belisarius approach.
Sep
11
comment Save output of NDSolve to a file
You can grab the actual points used by Plot with Cases[plot, _Line, Infinity][[1, 1]]. BTW, not part of your question, but you should use Export instead of raw Open/Write operations.