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EL-9900 Graphing Calculator
PARAMETERS
Name of parameter
A
B
F
H
K
O
P
Q
R
Content
value of 1+ (1/2)
value of 1- (1/2)
f (I,J)
step
calculating working area
value of Yn-1
increase of J
value of Qn
value of Rn
Name of parameter
S
T
I
J
Z
X
Y
M
N
Content
value of Xn-1
interval
Xn
Yn
value of increase of X
input of X
0
input of Y
0
indicates Xn
indicates Yn
4
DisplayStep
Key Operation
1
3
Specify the programme mode.
Select the title RUNGE.
(Display of X2)
(Display of Y2)
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.
5
(Display of X3)
(Display of Y3)
(Display of X1)
(Display of Y1)
Similar operation is performed
hereafter.
2
Enter the values of X0, Y0,
H and T.
21
CL2B
SET UP
2nd F
1
C
2nd F
PRGM
A
1
ENTER
0
0
•
30
0
•
0
ENTER
1
0
ENTER
ENTER
ENTER
ENTER