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I have a question about the capabilities of the Integrate command for general parameters. We know that there is a system of functions:[CurlyPhi][n_, x_] = HermiteH[n, x]/Sqrt[2^n*n!*Sqrt[[Pi]]]*Exp[-0.5...
Asked on 08/05/2021 by Gomboc
1 answerI want to program the Euler-Lagrange equations for continuous systems.But in this formulation I have to compute the derivative of the Lagrangian with respect to all the derivatives of...
Asked on 08/05/2021 by Gabriel Sandoval
1 answerI did this manipulation piece based on Boltzmann distribution but I noticed that is rather slow, any ideas how to improve this code?kb = 1.381*10^-23;Nav = 6.022*10^23;m = 0.032/Nav;Manipulate[...
Asked on 08/05/2021 by DJR
2 answerI want to plot the trajectory of a particle running on sphere together with the particle sitting on top of the last point of the trajectory. The problem is that...
Asked on 08/05/2021
0 answerYesterday my mathematica code can ran.However, now whenever I open it in Mathematica, Mathematica shut down immediately...I tried other files, and they can be opened in Mathematica. Is it...
Asked on 08/04/2021
0 answerWhen I solve the aforementioned equation for $W$ or $A$ on Mathematica I get a long and ugly equation in return, namely one of the solutions for $W$ is: (attempt...
Asked on 08/04/2021 by J.D'Almbert
5 answerI need help with b. I tried to use the find root but it didn't work !...
Asked on 08/04/2021 by Kassidy Moy
1 answerSystem Dynamics is an approach to understanding the behaviour of complex systems over time. It deals with internal feedback loops and time delays that affect the behaviour...
Asked on 08/04/2021 by Luxspes
4 answerI have this differential operator$$frac{d^2}{d y^2}qquad (1)$$I want to make a change of variable $y=x^2$ in $(1)$ so that I get this differential operator...
Asked on 08/04/2021
2 answerI recently upgraded to 12.2 and revisited some notebooks made last year (presumably in 12.0 or 12.1). It quite often happens for big notebooks (typically larger than or around 200MB)...
Asked on 08/04/2021
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