Radio Shack TRS-80 PC-3

KEY OPERATION SEQUENCE
Step No.
Key Input Display Remarks
1 @)CKJ
STARTING POINT =_ Waiting for starting point input
2
0
(ENTER)
MINUTE INTERVAL =_ Waiting for minute interval input
3 0.0001 (ENTER)
INTERVAL= _
Waiting
for interval width input
4
0.5
(ENTER)
ANSWER =
2.
Display of roots
5
(ENTER)
ANSWER = 1.
By repeatedly pressing the (ENTER)
key, the roots
of the function are found.
6
(ENTER)
ANSWER = -1.
7
(ENTER)
ANSWER =
1.
8
(ENTER)
ANSWER = -1.
9
(ENTER)
ANSWER = -1.
10
(ENTER)
ANSWER = -1.
11
(ENTER)
ANSWER =
2.
74!>