It is possible to use our laboratory of curves in:
www.mat.uned.es/GeoCM/2PP/lab_curvas/_apps/matematica3d_20.app/matematic...
(please be patient, some times our server is very slow)
With this laboratory it possible to visualize the Frenet frame, osculatrix circle, evolute, osculatrix plane, ... and to compute curvature, torsion, arc length, ... of differential curves.
There are several curves previously defined and the user can introduce its favourite ones using parametrization or curvature and torsion (i.e. it is possible to experiment with the fundamental theorem of curves).
The laboratory is made using the sugestion of our students and some of them participe very actively in all the process.
We are now doing some documentation and an english traslation.
The laboratory is programed using Easy Java Simulation, a very nice tool that has been created by Francisco Esquembre (Murcia University) and is part of the Open Source Physics project:
http://www.um.es/fem/EjsWiki/index.php/Main/HomePage

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