User Portlet
| Discussions |
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| Hello there, just in advance, I am relatively new to Mathematica. I have a set of coupled differential equations that I have already solved using 'NDSolve'. In these equations, Parameters like 'M' or 'l' occur. Now I want to vary these Parameters... |
| Hi, I am trying to plot the angles of a spherical pendulum fixed to a oscillating cart. I have derived the equations of motion, when I try to solve the equations using "NDSolve", following error occurs: > `NDSolve::ndsz: At t ==... |
| Hello, I am trying to plot a double pendulum. But when I try to plot the results, this error occurs: "NDSolve::ndsz: At t == 0.5517583468854775`, step size is effectively zero; singularity or stiff system suspected." Any idea what I've got... |
| Thank you, I corrected it, but the output says: NDSolve::deqn: Equation or list of equations expected instead of True in the first argument {True,\[Pi],\[Pi],0,0}. NDSolve::deqn: Equation or list of equations expected instead of True in... |
| Thank you very much, that helped. If I may, I have one more question: When I now want to plot the result, I used: Plot[\[Theta], {t, 0, 10}] Nothing happened. What can be the error? |
| Thank you very much, the "Remove" Command works very well. Have a nice day. |
| Thanks for your answer, I reinstalled Mathematica and now it works. |