Differential Equation Graphing
438
7. Press
…
to trace. Then press
3
¸
to
see the number of foxes (
yc
for
y1
) and
rabbits (
yc
for
y2
) at
t=3
.
Note:
Use
C
and
D
to move the trace
cursor between the curves for
y1
and
y2
.
8. Return to the Y= Editor. Press:
,
9
— or —
H 8
F
Set
Fields = DIRFLD
.
Note:
In this example,
DIRFLD
is used for
two related differential equations that do
not represent a 2nd-order equation.
9. Press:
H ‰
Confirm that the axes are set as shown.
10. In the Y= Editor, clear the initial conditions
for
yi1
and
yi2
.
11. Return to the Graph screen, which
displays only the direction field.
y2(t)
y1(t)
Содержание Voyage 200
Страница 36: ...Getting Started 36 D B D B Press Result ...
Страница 45: ...Getting Started 45 3 0 D B D D B D Press Result ...
Страница 46: ...Getting Started 46 D 2 0 0 2 D B Scroll down to October and press Press Result ...
Страница 60: ...Getting Started 60 B D Press Result ...
Страница 139: ...Previews 139 8 Complete the operation Press 2 d Steps and keystrokes Display 5 f 2 ...
Страница 181: ...Operating the Calculator 181 From the Keyboard From the Keyboard From the Keyboard From the Keyboard ...
Страница 453: ...Differential Equation Graphing 453 ...
Страница 468: ...Tables 468 ...
Страница 515: ...Split Screens 515 Note Both Top Bottom and Left Right splits use the same methods to select an application ...
Страница 777: ...Activities 777 ...