User Portlet
| Discussions |
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| I'd like to solve a differential equation with some initial conditions to get an eclipse curve for Earth's orbit using Newton's Law in a cylindrical coordinate. NDSolve gave me two more useless solutions, so I added ImplicitRegion option. But,... |
| Thank you for all your response. I can plot `lstint[x][[1]]` or `lstint[x][[2]]` without errors. I hope Wolfram to improve the functionality of ParametricPlot, FindRoot, and NSolve. |