!! used as default html header if there is none in the selected theme. Graphic ODE phase graph

# Graphic ODE phase graph --- Introduction ---

This module lets you choose the correct phase graph for a given ODE which is of the form
 x'(t) = Ax+By y'(t) = Cx+Dy
where A,B,C,D are constants.

The difficulty of the exercise varies considerably with the choices of several parameters.
• Level of difficulty: 1   2   3
• Number of presented phase graphs: 2   3   4   5   6   7   8
• Number of questions in each session: 1   2   3   4   5   6   7   8   9   10   (The score is attributed only at the end of a session.)
• or one can ask you to recognize each presented curve.

Other members in the series of graphical exercises. The most recent version

In order to access WIMS services, you need a browser supporting forms. In order to test the browser you are using, please type the word wims here: and press Enter''.

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: recognize the phase graph of a given ODE. 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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