HP HP-15C - Page 235

Appendix D: A Detailed Look at _ 235
Keystrokes
Display
-
008– 30
*
009– 20
3
010– 3
0
011– 0
0
012– 0
3
013– 3
+
014– 40
*
015– 20
6
016– 6
1
017– 1
7
018– 7
1
019– 1
+
020– 40
*
021– 20
2
022– 2
8
023– 8
9
024– 9
0
025– 0
-
026– 30
|n
027– 43 32
In Run mode, key in two large, negative initial estimates (such as -10 and
-20) and use _ to find the most negative root.
Keystrokes
Display
|¥
Run mode.
10 “ v
–10.0000
Initial estimates.
20 “
–20
´ _ 2
–1.6667
First root.
O 0
–1.6667
Stores root for deflation.
) )
4.0000 –06
Function value near zero.