Sjoerd C. de Vries
Reputation
46,854
102/100 score
 8h reviewed Close How can I convert some data in TableForm to a list form like as {{0,1}, {1,2},{…,…},…,{m,n}}? 8h comment Fitting bivariate data using FindFit Are you sure about the {x, y} argument? You get the above warning only when you use {x}. Using the function as above yields another message: FindFit::fitc: Number of coordinates (1) is not equal to the number of variables (2). >> 15h reviewed Close How to fit the data comes from the table into a function of x so that I can plot Two functions using TWO Y aix in one figure 22h awarded Nice Answer 1d revised How to define an exclusion zone for NDSolve edited body 1d comment How to define an exclusion zone for NDSolve For starters, it seems to me that the Sqrt's are superfluous. BTW note the existence of SquaredEuclideanDistance and EuclideanDistance 1d comment Why is Random faster than RandomReal? If you need the random numbers one at a time, can't you just generate a few million of them in one call (RandomReal[{0, 1}, {10^8}]) and index this list during your iterative process? 1d comment Using NDSolve to find particle trajectory @drN Good point. I elaborated the answer somewhat. 1d revised Using NDSolve to find particle trajectory added 383 characters in body 1d answered Using NDSolve to find particle trajectory 2d reviewed Reviewed Using different colors in TreeForm? Feb 5 awarded Nice Answer Feb 5 comment Symbolic vs numerical integration @Farhad use the Insert Graphics button or use the Mathematica upload tool Feb 5 reviewed Close How to represent one variable in terms of others in a system of equations? Feb 5 reviewed Close intermediate steps of simplification of algebraic expression without evaluation Feb 5 comment How to generate a random flow graph? @belisarius it doesn't seem to answer the follow-up question that was added later (and which I didn't notice until now). Feb 4 comment Export a .NOFF file without color information The NOFF help page says it will output CNOF is color information present. What happens if you export something like SphericalPlot3D[ 1 + Sin[4 \[Phi]]/2, {\[Theta], 0, Pi}, {\[Phi], 0, 2 Pi}, Lighting -> "Neutral", Mesh -> False, Axes -> False, Boxed -> False] /. RGBColor[__] -> Sequence[]? Feb 4 comment How to solve this recursive system? Not that it helps with your problem but I'd like to point out that you have used a few reserved keywords as variables in your code (E and D). In order to prevent conflicts you better refrain from using variables with an initial uppercase character. Feb 4 comment Need Help with solve function You're welcome. Note that IE11 seems to have problems with the add-in. Feb 4 revised Need Help with solve function deleted 14 characters in body