15–30 Mathematics Programs
File name 32sii-Manual-E-0424
Printed Date : 2003/4/24 Size : 17.7 x 25.2 cm
Example 1:
Find the roots of
x
5
–
x
4
– 101
x
3
+101
x
2
+ 100
x
– 100 = 0.
Keys: Display:
Description:
W
P
@
value
Starts the polynomial root finder;
prompts for order.
5
f
@
value
Stores 5 its
F
; prompts for
E
.
1
_
f
@
value
Stores –1 in
E
; prompts for
D
.
101
f
@
value
Store –101 in
D
. prompts for
C
.
101
f
@
value
Stores 101 in
C
; prompts for
B
.
100
f
@
value
Stores 100 in
B
; prompts for
A
.
100
_
f
%/)
Stores –100 in
A
; calculates the
first root.
f
%/)
Calculates the second root.
f
%/)
Displays the third root.
f
%/.)
Displays the fourth root.
f
L/.)
Displays the fifth root.
Example 2:
Find the roots of 4
x
4
– 8
x
3
– 13
x
2
– 10
x
+ 22 = 0. Because the coefficient of
the highest–order term must be 1, divide that coefficient into each of the other
coefficients.
Keys: Display:
Description:
W
P
@
value
Starts the polynomial root finder;
prompts for order.
4
f
@
value
Stores 4 its
F
; prompts for
D
.
8
_
4
p
f
@
value
Stores –8/4 in
D
; prompts for C.
13
_
4
p
f
@
value
Store –13/4 in
C
. prompts for B.
