Casio Algebra FX 2.0 PLUS User Manual page 115

Additional functions
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Example 2
To graph the solution of the system of first order differential equations
below.
y
(
)n = (2 – (
1
y
(
)n = (2 (
2
x
= 0, (
0
Use the following V-Window settings.
Xmin = –1,
Ymin = –1,
Procedure
1 m DIFF EQ
2 4(SYS)
3 2(2)
yn
4 (c-3(
bw
yn
(c*3(
yn
)cw
)*3(
5 aw
bw
b/ew
6 5(SET)b(Param)
7 aw
baw
1
8 a.bw*
i
*
1
Result Screen
3-5-3
System of First Order Differential Equations
y
y
)) (
)
2
1
y
y
) – 3) (
)
1
2
y
y
)
= 1, (
)
= 1/4, 0 < < < < <
1
0
2
0
Xmax = 11,
Ymax = 8,
yn
)c)*3(
)
)b-d
20010101
x
h
< < < < < 10,
= 0.1.
Xscale = 1
Yscale = 1
9 5(SET)c(Output)4(INIT)
cc1( SEL)
y
( Select (
) and (
1
ff2( LIST)bw( Select LIST1
to store the values for
c2( LIST)cw ( Select LIST2 to
store the values for (
c2( LIST)dw ( Select LIST3 to
store the values for (
i
0 !K(V-Window)
-bwbbwbwc
-bwiwbwi
! 6(CALC)
*
2
y
) to graph.)
2
x
in LIST1)
y
) in LIST2)
1
y
) in LIST3)*
2
2
y
(
)
1
y
(
)
2

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