!! used as default html header if there is none in the selected theme.
This module is a graphical exercise on parametric curves in the cartesian plane.
A parametric curve is determined by two real functions and of a parameter . This curve is therefore the set of points for different values of t. On the other hand, we also have the graphs of the two coordinate functions and which are curves.
This exercise can either present the two curves of and and ask you to recognize the parametric curve among others, or present the parametric curve and ask you to recognize the curves of and .
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.