HP HP-15C - Page 64

62
Section 2: Working With [7T|
Keystrokes
fSTOll
Display
032- 44 1
[x$y|
ISTOlO
1
0
6
[GTOlG
0
[RCL|0
ED QUO
2
S
DDE
H
033- 34
034- 44 0
035- 4316
036- 1
037- 48
038- 6
039-43,30, 8
040- 22 6
041- 0
042- 45 0
043-42,20, 0
044- 2
045- 20
046-42,21, 3
047- 43 26
048- 11
049- 10
050- 43 32
051-42,21, 6
QDdSi
0
[RCLlO
30
|CHS|
Eg
EHJ1
|GSB|3
|RCL|0
| ENTER |
[in|ABS|
B
s
052-43, 4, 1
053- 0
054- 45 0
055- 4311
056- 16
057- 12
058-42,20, 1
059- 32 3
060- 45 0
061- 36
062- 4316
063- 10
064- 20
Stores 0 for erf(x), 1 for
erfc(x).
Calculates \x\.
Tests H> 1.6 .
Branch for |x| > 1.6 .
Recalls x.
Integrates e~f from 0 to x.
Subroutine to divide by
Subroutine to integrate
when |x|> 1.6 .
Sets flag 1.
Calculates e x .
Integrates (-In u)~l/'2 from
0 to e~x2.
Divides integral by VTT .
Calculates sign of x.