Casio Algebra FX 2.0 PLUS User Manual page 111

k Converting a High-order Differential Equation to a System of First Order
Differential Equations
You can convert a single N-th order differential equation to a system of
differential equations.
Set Up
1. From the Main Menu, enter the DIFF EQ Mode.
Execution (N = 3)
2. Press 3(N-th).
n
3. Press 3(
4. Perform substitutions as follows.
n → Y1 (3(
y
y → Y2 (3(
5. Specify the initial value for
6. Press 2(→SYS).
7. Press w(Yes).
• The entered differential equation is converted to a system of three first order
differential equations. Initial values are also converted accordingly.
Differential Equations of the Nth Order
)d to select a differential equation of the third order.
y
)b)
(n)
y
)c)
(n)
x y y
, ,
n
0 0
3-4-3
y
, and .
0 0
20011101 20010101
n
first order