This module is a classical exercise of plane geometry. The server generates a random plane curve (cartesian, parametrized or polar according to the initial choice), and present its equation as well as a drawing. And you will be asked to compute the equation of the tangent or normal line of the curve at a given point.

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Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

- Description: find tangent / normal line of a plane curve. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games
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