Parametric Graphing 5-5
When you press ,, the TI-80 plots the selected
parametric equations. It evaluates both the X and the Y
component for each value of T (from TMIN to TMAX in
intervals of TSTEP) and then plots each point defined by X
and Y. The Window variables define the viewing window.
As a graph is plotted, the TI-80 updates X, Y, and T.
Note: Smart Graph applies to parametric graphs also (page
4-11).
By means of the VARS WINDOW... and Y-VARS menus, you
can:
¦Access functions by using the name of the component of
the equation as a variable.
¦Select or deselect parametric equations from a program,
using the FNON and FNOFF commands (page 4-8).
¦Store parametric equations.
¦Store values directly to Window variables.
Displaying a
Graph
VARS WINDOW
and Y-VARS
Menus