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HP HP-67 User Manual
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192
Branching
Problems
1.
Write
a
program
that
will
calculate
the
arc
sine
(that
is,
sin™?)
of
a
value
that
has
been
keyed
into
the
displayed
X-register.
Test
the
resulting
angle
with
a
conditional,
and
if
it
is
negative
or
zero,
add
360
degrees
to
it
to
make
the
angle
positive.
Use
the
flowchart
below
to
help
you
write
the
program.
Start
Y
Is
zero?
Calculate
arc
sine
of
x.
Yes
arc
sine
greater
than
Add
360
degrees.
Stop
195
197
Table of Contents
Table of Contents
4
The HP-67 Pocket Programmable Calculator
12
Functionkey Index
12
The HP-67
14
Programming Key Index
14
Meet the HP-67
19
Manual Problem Solving
20
Running a Prerecorded Program
21
Your OWN Program
28
Part One: Using Your HP-67 Pocket Calculator
29
Section 1: Getting Started
31
Display
31
Keyboard
31
Keying in Numbers
32
Negative Numbers
33
Clearing
33
Functions
34
One-Number Functions
35
Two-Number Functions
36
Chain Calculations
38
A Word Aboutthe HP-67
43
Section 2: Display Control
45
Display Control Keys
46
Scientific Notation Display
47
Fixed Point Display
48
Engineering Notation Display
49
Automatic Display Switching
51
Keying in Exponentsof Ten
52
Calculator Overflow
54
Error Display
54
Low Power Display
55
Section 3: the Automatic Memory Stack
57
The Stack
57
Initial Display
57
Manipulating Stack Contents
58
Reviewingthe Stack
58
Exchangingxandy
59
Automatic Stack Review
60
Clearingthe Display
61
The KOY V et
62
One-Number Functions and the Stack
64
Two-Number Functions and the Stack
64
Chain Arithmetic
66
Order of Execution
70
LAST X Ittt
71
Recovering from Mistakes
71
Recovering a Number for Calculation
72
Constant Arithmetic
72
Section 4: Storing and Recalling Numbers
75
Storage Registers
75
Storing Numbers
76
Recalling Numbers
76
The I-Register
77
Protected Secondary Storage Registers
78
Automatic Register Review
81
Clearing Storage Registers
83
Storage Register Arithmetic
85
Storage Register Overflow
87
Section 5: Function Keys
89
Number Alteration Keys
89
Absolute Value
90
Integer Portion of a Number
90
Fractional Portion of a Number
91
Reciprocals
91
Factorials
92
Square ROOS
93
USING Pi
93
Percentages
94
Percentof Change
95
Trigonometric Functions
96
Degrees/Radians Conversions
96
Functions
97
Trigonometric Modes
97
Hours, Minutes, Seconds/Decimal Hours Conversions
98
Adding and Subtracting Time and Angles
100
Polar/Rectangular Coordinate Conversions
102
Logarithmic and Exponential Functions
107
Logarithms
107
Raising Numberstopowers
108
Statistical Functions
111
Accumulations
111
Mean
115
Standard Deviation
117
Deleting and Correctingdata
120
Vector Arithmetic
122
Part Two: Programming the HP-67
125
Section 6: Simple Programming
127
What Isa Program
128
Loading a Prerecorded Program
128
Stopping @ Running Program
131
Looking at Program Memory
131
Keycoes
133
Default Functions
135
Problems
135
Clearinga Program
136
Creating Your Own Program
137
The Beginning of Aprogram
137
Endinga Program
138
The Complete Program
138
Running a Program
141
Executing Instructions
142
Labelsand Step 000
144
Flowcharts
144
Problems
148
Section 7: Program Editing
151
Nonrecordable Operations
151
Pythagorean Theorem Program
153
Initializinga Program
154
Running the Program
155
Resettingto Step 000
155
Single-Step Execution of a Program
156
Modifying a Program
158
Single-Step Viewing Without Execution
159
Goingtoa Step Number
161
Stepping Backwards through a Program
162
Running the Modified Program
164
Deleting an Instruction
165
Problems
168
Section 8: Interrupting Your Program
173
Using
173
Pausinginaprogram
176
Pausing to View Qutput
176
Pausing Forlnput
179
Section 9: Branching
183
Unconditional Branching and Looping
183
Problems
186
Conditionals and Conditional Branches
189
Problems
196
Section 10: Subroutines
201
Routine-Subroutine Usage
208
Subroutine Limits
210
Problems
212
Section 11: Controlling the I-Register
217
Storinga Numberini
217
Exchangingxand I
218
Incrementing and Decrementing the I-Register
219
Problems
224
Section 12: Using the I-Register for Indirect Control
227
Indirect Display Control
229
Indirect Storeand Recall
233
Indirect Incrementing and Decrementing of Storage Registers
242
Indirect Control of Branches and Subroutines
242
Rapid Reverse Branching
248
Problems
254
Section 13: Flags
259
Command-Cleared Flags
260
Dataentryflag
264
Problems
270
Section 14: Card Reader Operations
275
Magneticcards
275
Program Cards
276
Recording a Programontoacard
276
Reloading a Recorded Program Froma Card
277
Merging Programs
278
Protectinga Card
282
Markinga Card
282
Datacards
283
Recording Dataontoacard
283
Loading Datafromacard
285
Merged Loadingofdata
290
Pausingto Readacard
296
Section 15: the HP-67 and the HP-97: Interchangeable Software
303
Keycodes
303
Print and Automatic Review Functions
306
A Word about Programming
309
Appendix A: Accessories
310
Standard ACCESSOMNES
310
Optional Accessoores
310
Appendix B: Service and Maintenance
314
Your Hewlett-Packard Calculator
314
Battery Operation
315
Recharging and AC Line Operation
315
Battery Pack Replacement
317
Batterycare
319
Magnetic Card Maintenance
319
SEIVICE . Ittt E
320
Low Power
320
Blank Display
320
Blurring Display
321
Improper Card Read Operation
321
Temperature Range
322
Warranty
322
Full One-Yearwarranty
322
Obligation to Make Changes
322
Repair Policy
322
Repair Time
322
Shipping Instructions
322
Shipping Charges
323
Further Information
323
Appendix C: Improper Operations
324
Appendix D: Stack Lift and LAST X
326
Stack Lift
326
LAST X Oo
327
Appendix E: Calculator Functions and Keycodes
328
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HP HP-67 Specifications
General
Brand
HP
Model
HP-67
Category
Calculator
Language
English
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