HP -15C Advanced Functions Handbook page 63

Section 2: Working With [7F] 61
Keystrokes
[TIIP/RI
in CLEAR fPRGMl
[TIlLBLirAl
I STO 1 2
|CHS|
[GTO]2
mrLBnm
[STOl2
E[LBL]2
2
[H
s
iGSBlfc]
2
B
[RCL12
| STO | 0
EE
[T||RTN|
rfifLBLirci
1
|GSB|4
[g][FT]i
| GTO | 5
1
H
EHD5
| CHS |
rgirRTNi
mrnBLim
0
rn[LBLi4
Display
000-
001-42,21,11
002-
44 2
003-
16
004-
22 2
005-42,21,12
006-
44 2
007-42,21, 2
008-
2
009-
11
010-
10
011- 3 2 1 3
012-
2
013-
10
014-
45 2
015-
44 0
016-
33
017- 4 3 3 2
018-42,21,13
019-
1
020-
32 4
021-43, 6, 1
022-
22 5
023-
1
024-
30
025-42,21, 5
026-
16
027-
43 32
028-42,21,15
029-
0
030-42,21, 4
Program mode.
Program for P(x).
Stores x in R
2
.
Calculates -x.
Branches to calculate
P(x) = Q(-x).
Program for Q(x).
Stores x in R
2
.
Calculates erfc(x/\/2).
Calculates
031-43, 5, 1
Stores x in R
0
.
Returns function value.
Program for erfc(x).
Tests flag 1 set.
Branches for flag 1 set.
Calculates erf(x) — 1 for
flag 1 clear.
Calculates erfc(x).
Returns function value.
Program for erf(x).
Subroutine for erf(:x;) or
erfc(^).
Clears flag 1.