HP 15c - Manual (Page 140)

140 Section 4: Using Matrix Operations
140
Keystrokes Display
´>5 083-42,16, 5
Calculates slope as (

f)
T
s.
1 084- 1
v 085- 36
l|B 086-45,43,12
|n 087- 43 32 Exits with slope in X-register.
´bA 088-42,21,11 Main routine.
0 089- 0
O6 090- 44 6
´b2 091-42,21, 2
1 092- 1
O+6 093-44,40, 6 Stores j + 1 in R
6
.
´i3 094-42, 8, 3
G7 095- 32 7 Branches to line search.
l6 096- 45 6
´•0 097-42, 7, 0
´© 098- 42 31 Pauses with j + 1 in display.
´>1 099-42,16, 1 Sets R
0
=R
1
=1 for viewing.
´i3 100-42, 8, 3
l9 101- 45 9 Recalls f(x)
¦ 102- 31 Stops program.
l3 103- 45 3 Recall e.
l>E 104-45,16,15
´>8 105-42,16, 8
Calculates ||

f(x)||.
|£ 106- 43 10
Tests ||

f(x)|| ≤ e.
tB 107- 22 12 Branch for showing solution.
´© 108- 42 31
Shows ||

f(x)||.
l5 109- 45 5
l6 110- 45 6
|T8 111-43,30, 8 Tests (j + 1) < N.
t2 112- 22 2 Branch to continue iterating.
l>C 113-45,16,13
|a 114- 43 16 Displays Error 1 with C in X-
register.
t2 115- 22 2 Branch for continuing.
´bB 116-42,21,12 Routine to show solution.
|F9 117-43, 4, 9 Sets blink flag.
¦ 118- 31
Stops with ||

f(x
j + 1
)|| in display.
tB 119- 22 12 Looping branch.