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graph parametric equations

graph parametric equations

by joel robbin -
Number of replies: 2
It is easy to graph an equation like y=3x^2+2x-7
as shown in the newbie guide. Is there a similarly
easy method for graphing parametric equations
like x= cos(2t), y=sin(t)?
In reply to joel robbin

Re: graph parametric equations

by Michael Gage -
You can plot parametric equations as well. For examples see:

http://webwork.maa.org/doc/cvs/pg_CURRENT/lib/VectorField.html
and

http://webwork.maa.org/doc/cvs/pg_CURRENT/lib/WWPlot.html

Not everything is well documented so looking at the actual code in those files will help has well.

Here is a directory of problems that use the files:
rochesterLibrary/setDiffEQ2DirectionFields/ur de 2 1-
/ur de 2 1.pg

or

http://cvs.webwork.rochester.edu/viewcvs.cgi/database_problems/Rochester/setDiffEQ2DirectionFields/?cvsroot=Arizona+State+University
hope this helps.

Mike