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 7m comment Three Body Problem Equilateral Triangle demonstrations.wolfram.com/PlanarThreeBodyProblem 1h comment Maximum Value of an Interpolating Function yMax = NMaximize[{y[r] /. sol[[1]], r0 < r < 30}, r]; returns{2.75998,{r->24.5087}} 1h comment How to find x intercept using two functions in NDSolve? The parametric Plot of {x[t],y[t]} will cross the x axis when y[t] is zero. Use WhenEvent Nov 27 comment How to extract a region shape from an 2 colour image? @Edmund Of course. I made up that because I found corner cases where FilliTransform wasn't enough. Trying to remember what were those :) Nov 27 comment How to evaluate the limit of a function consists of Range @robit You can find more info on the convergence of those series here ... those problems were Ramanujan's pets Nov 27 comment How to evaluate the limit of a function consists of Range @robit Well, it's the Kasner number. See this. Nov 27 comment How to extract a region shape from an 2 colour image? The intersection? Are you sure? It will be very difficult to calculate the intersection of two shapes that aren't completely specified (in the general case, I mean) Nov 26 comment Numerical Integration w/parameter Nov 26 comment How to terminate early a functional computation @MikeHoneychurch Thanks a lot! Nov 26 comment How to terminate early a functional computation I'm on V9- Could you please compare this with my cheap solution on the comments? I guess this one is faster, but I'm curious about the improvement Nov 26 comment How to terminate early a functional computation @march Don't trust too much :) Nov 26 comment How to terminate early a functional computation @march I was looking for a good example stackoverflow.com/a/6209778/353410 Nov 26 comment How to terminate early a functional computation Not very efficient a = {1, 2, 3, 4}; b = {2, 3, 4}; MatchQ[a, {___, PatternSequence @@ b, ___}] A Boyer-Moore type alg should be better Nov 26 comment Give a common denominator to a whole list The real problem is how to get that numbers printed.Mathematica will simplify them on the fly. There are several related question to this on this site. Search for them Nov 26 comment Specify only one jump direction of LocatorPane @Algohi I don't get you ... Nov 26 comment ExampleData texts Run ExampleData["Text"] Nov 26 comment Extracting a random sample from a list Dude, don't ask those things. Go to the docs and check them out Nov 26 comment Extracting a random sample from a list RandomSample[data, 3] I believe you have to practice your docs-fu Nov 26 comment How to Framed the element which is in a approximate connectional line between any two position in non-square matrix The name of the algorithm is Bresenham's. A very common topic in computer graphics Nov 26 comment How do I numerically solve a discrete time dynamical system in mathematica? So five equations and four variables?