- **Calculus & Beyond Homework**
(*http://www.physicsforums.com/forumdisplay.php?f=156*)

- - **Matrix differentiation(lagrangian dynamics)**
(*http://www.physicsforums.com/showthread.php?t=579974*)

Matrix differentiation(lagrangian dynamics)Suppose we can write the total energy of a system like below in Lagrangian dynamics and generalized coordinates:
http://i43.tinypic.com/2laptux.jpg where H is total energy, D is the inertia matrix and P is potential energy and q is the generalised coordinate.If we differentiate this, it would become like below. I want to know how. Especially how you differentiate the first term which is in quadratic form and one is transpose of the other. Any textbook which covers these stuff would be helpful too. http://i43.tinypic.com/ea32g0.jpg Thanks in advance |

All times are GMT -5. The time now is 01:47 PM. |

Powered by vBulletin Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.

© 2014 Physics Forums