Table of Contents
Advertisement
In
graphing mode,
is
DifEq
t
the independent variable and
Q'
n is the dependent variable,
where n ‚ 1 and 9.
In the example, the default
window variable values are
set initially.
When
field format is
DirFld
selected,
,
,
x=Q1
y=Q2
dTime=0
, and
fldRes=15
are
the default axes settings.
Since
is not part of the
t
equation,
is ignored.
dTime
Graphing in DirFld Format
Display the mode screen and set
graphing mode.
Display the format screen and set
graphing format.
Display the equation editor and store the
transformed system of differential
L
equations for y''=
y to the equation editor,
substituting
Q1
for y and
Display the initial conditions editor and enter
the initial conditions if you want a specific
solution. To enter a list of initial conditions,
use
{
and
}
from the
LIST
Display the axes editor and enter the two
equation variables for which you want to
solve. You must omit the prime mark (
Accept or change
fldRes
Select
ZSTD
from the
to set the standard window variable values
and display the graph.
Clear the
GRAPH
menu from the screen.
Chapter 10: Differential Equation Graphing
- m # # #
DifEq
# " " " b
6 / & #
DirFld
# # # # " b
& '
Q2
for y'.
- g - "
&
# & -~ P
P
menu.
- h &
&
'
).
(resolution).
. / ( )
GRAPH ZOOM
menu
:
# a '
2
1
P
P
'
1
2
5
4
`
'
5
75
#
1
2
141
Hide quick links:
Advertisement
Table of Contents
