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Question: Differential Equation - Numerical Solution - 3D Plot

Question:Differential Equation - Numerical Solution - 3D Plot

Petr Malik 28 Maple
April 21 2007
0
Hello, I am new to Maple (I am used to Mathematica 5.2). I have a differential equation which can be solved numerically (evolution of the scale factor of the Universe containing matter, radiation and dark energy). I've figured out how to use the interactive dsolve() to produce two dimesional plots of R vs. t, yet I'd like to make a nice 3D plot (in cylindrical coordinates) with [R ,R ,t] axes. Having a symbolic solution I would use Mathematica with something like: ParametricPlot3D[{R[t] Cos[x], R[t] Sin[x], t}, {t, -1, 3}, {x, 0, 2Pi}]; In the interactive dsolve() mode Maple offers 3-D plot but it is not what I want... In short, I just need a parametric 3D plot of a numerical solution of a differential equation. Thanks for help.
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