HP 15c - Manual (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.