Differential Equation Graphing - Texas Instruments TI-89 Titanium Short User Manual

Steps and keystrokes
8. Return to the initial orientation.
Press 0 (zero)
9. Display the graph in different graph format
styles.
@
Í (press Í to switch from each style
to the next)
Note: You can also display the graph as an implicit plot by using the
GRAPH FORMATS
styles, the implicit plot is not displayed.

Differential Equation Graphing

Graph the solution to the logistic 1st-order differential equation
y' = .001y...(100Ny). Start by drawing only the slope field. Then enter initial
conditions in the Y= Editor and interactively from the Graph screen.
Steps and keystrokes
1. Display the
mode, select
Press 3 B 6 ¸
Previews
dialog box (8 Í). If you press: Í to switch between
dialog box. For
MODE
DIFF EQUATIONS
Graph
.
Display
HIDDEN SURFACE
CONTOUR LEVELS
(may require extra time to
calculate contours)
WIRE AND CONTOUR
WIRE FRAME
Display
63