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Student Support Forum: 'Mathematica Questions: Hysteresis, Calculus of Variations, etc.' topicStudent Support Forum > General > "Mathematica Questions: Hysteresis, Calculus of Variations, etc."

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Author Comment/Response
Tim Lahey
10/23/99 05:58am

Hi,

After years of using Maple (& MATLAB) I'm trying to learn
Mathematica. There are several things I want to do and I
don't know if I can do them.

First, I am trying to model hysteresis. Has anyone tried to
model plays and stops using Mathematica?

Second, since I have to do work involving PDEs I am trying to the Method of Ritz. I would like to work with vectors and matrices as single entities rather than as a collection of components. Can I take a derivative of a quadratic form such as (a^T) B c where a and c are vectors, B is a matrix and ^T represents a transpose operation? I can do this by hand but I would like to keep all my mathematical calculations on the computer.

Finally, does anyone have examples of how to use the variational calculus package? The help on it is lousy.

Thanks,

Tim Lahey
M.A.Sc. Student - Systems Design Engineering
University of Waterloo
tjlahey@cgl.uwaterloo.ca

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Subject (listing for 'Mathematica Questions: Hysteresis, Calculus of Variations, etc.')
Author Date Posted
Mathematica Questions: Hysteresis, Calculus of ... Tim Lahey 10/23/99 05:58am
Re: Mathematica Questions: Hysteresis, Calculus... Fabrice P. L... 11/13/99 07:12am
Re: Mathematica Questions: Hysteresis, Calculus... Tim Lahey 11/17/99 04:59am
Re: Mathematica Questions: Hysteresis, Calculus... Fabrice P. L... 11/20/99 2:20pm
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