# Timeline for Fast way to repeatedly solve a small nonlinear equation system

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Dec 28 '21 at 4:01 comment Can you please include the equations defining your system along with representative numerical values for parameters? There may be a quick way, but it depends on the math.
Dec 28 '21 at 3:27 history edited
deprecating [solver]
May 26 '14 at 14:02 comment Thanks for the suggestion, we already have tested Eigen (unsupported/Eigen/NonLinearOptimization), and it turns out that, surprisingly, CMINPACK is still the faster implementation (but the performance results are very similar).
May 25 '14 at 7:55 comment Speculation: Eigen has a port of MINPACK which may help. Eigen can be templated with fixed-sized matrices and might (maybe) work better for your problem.
May 22 '14 at 10:21 history tweeted
May 21 '14 at 22:02 review
May 22 '14 at 1:27
May 21 '14 at 21:54 answer timeline score: 2
May 21 '14 at 21:44 history asked