Sharp EL-9400 The built-in differential equation is F = -I J, EL-9600/9400 Graphing Calculator

EL-9600/9400 Graphing Calculator

PARAMETERS

Name of parameter	Content		Name of parameter	Content
A	value of 1+	S		value of Xn-1
B	value of 1-	T		interval
F	f (I,J)	I		Xn
H	step	J		Yn
K	calculating working area	Z		value of increase of X
O	value of Yn-1	X		input of X0
P	increase of J	Y		input of Y0
Q	value of Qn	M		indicates Xn
R	value of Rn	N		indicates Yn

Exercise

Initial settings: Y = 10 when X = 0. Find J when H = 0.01, T = 0.03 and I = 0.03, 0.06....

(The built-in differential equation is F = -I J.)

Set up condition: angle unit in Rad Mode and decimal point in

Float Pt Mode.

2nd F SET UP B *

2*

C*

1*

CL

	Step
	Specify the programme mode.
1
	Select the title RUNGE.

2	Enter the values of X0, Y0,
	H and T.

3

(Display of X1)

(Display of Y1)

Key Operation	Display
	(When using EL-9600)

2nd F PRGM A *

0 ENTER 1 0 ENTER

0 • 0 1 ENTER 0 • 0 3 ENTER

ENTER

4

(Display of X2)

(Display of Y2)

5

(Display of X3)

(Display of Y3)

Similar operation is performed hereafter.

ENTER

ENTER

21