HP -15C Advanced Functions Handbook page 69

Keystrokes
0
H
GO [MED
SectionS: Calculating in Complex Mode 67
Display
026- 20
027- 40 Calculates ln(r(2».
028- 43 32
Store the constants in registers R
Q
through R
6
in order according to
their subscripts.
Run mode.
Stores a
0
.
Stores a^.
Stores a
2
.
Stores a
3
.
Stores a
4
.
Stores a
5
.
Stores o
6
.
Use this program to calculate ln(r(4.2)), then compare it with
ln(3.2!) calculated with the [xj] function. Also calculate ln(r(l + 5/)).
Keystrokes
nnfp/Ri
2 ESS
[D[LN]2m
[STOlO
l2|T7xirsTb~1i
30 [T/x] [STO] 2
53 | ENTER 1 21 OF|
| STO | 3
195 I ENTER 1 371 0
| STO | 4
1.0 11 523068 [STO] 5
1.5 17473 649 [STO] 6
Display
6.2832
0.9189
0.9189
0.0833
0.0333
0.2524
0.2524
0.5256
0.5256
1.0115
1.5175
Keystrokes
4.2 I
3.2 EH
Display
2.0486
2.048555637
7.756689536
2.048555637
1.000000000
1.000000000
Calculates ln(r(4.2)).
Displays 10 digits.
Calculates
(3.2)! = r(3.2 + 1).
Calculates ln(3.2!).
Enters real part of 1 + 5i.
Forms complex number
1 + 5i.