Talk:Lagrangian mechanics
From Academic Kids
Was redirected to Talk:Lagrange's equations.
Definitely needs a rewrite. A lot of the content here overlaps with the content in action (physics), but the derivation of the Euler-Lagrange equations differs. Some consolidation is probably in order, and I think I prefer the one here to the one in action (physics). There's definitely a notational issue, since this page uses r' and the other uses r-dot.
Taral 08:13, 19 Jun 2004 (UTC)
I have trouble understanding this bit below:
More generally, we can work with a set of generalized coordinates and their time derivatives, the generalized velocities: {qj, q′j}. r is related to the generalized coordinates by some transformation equation:
- <math>\mathbf{r} = \mathbf{r}(q_1 , q_2 , q_3, t). \,\!<math>
What is q
What is this equation? <math> \mathbf{r}(q_1 , q_2 , q_3, t). \,\!<math>
The above equation makes no sense what so ever.
- I cleared it up a bit, I hope, by reordering that sentence and adding a really simple example. Laura Scudder 00:08, 7 Mar 2005 (UTC)
- Great article. But since the biggest clincher is generalized coordinates, perhaps there should be separate discussion on the matter elsewhere? --Rev Prez 13:10, 28 May 2005 (UTC)
