Texas Instruments TI-89 Titanium User Manual page 432

15. The exact solution to the differential
equation is given below. Enter it as y1.
y1 = (100ùe^(x/10))/(e^(x/10)+9)
You can use
Note:
exact, general solution. ,
16. In the Window Editor, set the Window
variables.
xmin= L 10
xmax=100
xscl=10
17. Display the Graph screen (8 %).
The fuzzy line on the graph
Note:
indicates differences between the
values.
Euler
18. In the Window Editor, set the Window
variables to zoom in so that you can
examine the differences in more detail.
xmin=39.7
xmax=40.3
xscl=.1
19. Return to the Graph screen.
Differential Equation Graphing
to find this
deSolve( )
xres=2.
ymin= L 10.
ymax=120.
yscl=10.
ymin=85.5 xres=2
ymax=86
yscl=.1
You can use C to
scroll up to see Plot
1 and Plot 2.
and
RK
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