HP 15c Scientific –20, –06, 008–, 009–, 010–, 011–, 012–, 013–, 014–, 015–, 016–, 017–, 018–, 019–, 020–, 021–, 022–, 023–, 024–, 025–, 026–, 027–, –1.6667, –1.6667, –10.0000

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.
O0		–1.6667		Stores root for deflation.
))		4.0000	–06	Function value near zero.