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HP HP-11C User Manual
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66
Section
3:
Numeric
Functions
T
¢
?:
2=
-
Y|
y
/
x>
[
Keys
=
ssTxe
Example.
Using
the
statistics
saved
from
the
previous
example,
if
Voltz
wishes
to
predict
coal
production
(y)
for
1977,
she
keys
in
an
estimate
of
electrical
production
(a
“known’
x-value)
for
1977
and
presses
(f](7.r].
Because
the
correlation
coefficient
for
Voltz’s
data
is
automatically
included
in
the
calculation,
she
can
view
how
closely
her
data
fits
a
straight
line
by
simply
pressing
after
the
y
prediction
appears
in
the
display.
Keystrokes
Display
7.1417
7.1417
Voltz’s
estimate
of
1977
electrical
output.
2.0046
Predicted
coal
production
for
1977.
X=y
0.9211
The
data
closely
approximates
a
straight
line.
67
69
Table of Contents
Introduction
4
Table of Contents
5
Contents
9
The HP-11C Keyboard and Continuous Memory
10
Your HP-11C: a Problemsolver
11
Manual Solutions
12
Programmed Solutions
14
Partl HP-11C Fundamentals
17
Section 1: Getting Started
18
Power Onand off
18
Display .Ot
18
Radix Mark and Digit Separator
18
Annuncialors
18
Negative Numbers
19
Display Clearing: [Clx]And
19
Running
20
Overflowandunderflow
20
Errormessages
21
Low Batteryindicator
21
Memmory O
21
Continuous Memory
21
Resetting Memory
22
Keyboard Operation
22
Primary and Alternate Functions
22
Clearing Prefixes
23
One-Number Functions
23
Two-Number Functions
24
Section 2: the Automatic Memory Stack, LAST X, and Datastorage
28
The Automatic Memory Stack and Stack Manipulation
28
Stack Manipulation Functions
29
Calculator Functionsandthestack
31
Two-Number Functions
31
Chaincalculations
33
Lastx
34
Constant Arithmetic
36
Storage Register Operations
39
Recallingnumbers
40
Storage Andrecallexercises
40
Clearing Data Storage Registers
40
Storage Register Arithmetic
41
Storage Register Arithmetic Exercises
42
Problems
42
Section 3: Numericfunctions
44
T Pp
44
Number Alteration Functions
44
One-Number Functions
45
General FUNCLIONS
45
Trigonometric Operations
47
Time and Angle Conversions
48
Logarithmic Hyperbolicfunctions
50
Exponential
51
Percentages
51
Polar-Rectangular Coordinate Conversions
53
Probability
54
Statisticss FUNCHIONS
56
Random Number Generator
56
Accumulating Statistics
57
Mean
62
Standarddeviation
63
Linear Regression
65
Linear Estimation and Correlation Coefficient
66
Section4: Displaycontrol
69
Display Mode Control
69
Fixed Decimal Display
70
Engineering Notation Display
72
Keying in Exponents
73
Rounding Atthe Tenth Digit
74
Partil: HP-11C Programming
75
Whatlsaprogram
76
Why Write Programs
76
Program Control
76
Section 5: Programmingbasics
77
IMEM] et E E E
79
Keycodes Andlinenumbers
79
Abbreviated Key Sequences
80
Usermode
81
Programmemory
82
Interpretingkeycodes
83
Programming Operations
85
The Complete Program
87
Loadingaprogram
87
Runninga Program
88
Program Stopsandpauses
90
User Mode Operation
91
Planned Stops During Program Execution
91
Pausing During Program Execution
93
Unexpected Program Stops
95
Section 6: Program Editing
98
Finding Program Errors
98
Editing Funclions
99
Editing Example
100
Single-Step Executionofaprogram
101
Using (Sst)And Inprogrammode
102
Modifyingaprogram
103
Problems
109
Section 7: Program Decisions and Control
112
Program Conditional Tests
112
Flags .Ot E E
113
Program Control
114
GO0 Ottt E E E
114
Branchingandlooping
114
Usingflags
118
Section 8: Subroutines
121
Gotosubroutine
121
Subroutine Limits
122
Subroutinelusage
123
Section 9: the Index Register
129
Direct Index Register Functions
129
Indirect Index Register Functions
132
Loop Control Using
134
Indirect Ry Operations
137
Indirect Programcontrol
138
Indirect Label Branches and Subroutines
138
Indirect Line Number Branches and Subroutines
139
Part III: Programmed Problem Solving
141
Section 10: Applications Programs
142
Matrix Algebra
151
Systems of Linear Equations with Three Unknowns
151
Newton''s Method (Solutiontof(X)=0)
156
Numerical Integration by Discrete Points
161
Curve Fitting
171
LS Atistics Lt I E E E E E
178
Chi-Square Evaluation
184
Finance: Annuities and Compound Amounts
187
Submarinehunt
196
Section 11: Programming Techniques
208
The Problem Statement
208
The Algorithm
208
Flowcharts
210
Sudioulines
212
Datalnput
214
LOOPING Ittt
216
Flags Oot E E E
217
Random Numbers
219
User-Definable Keys
219
Storingdata
220
Selecting Different Routines
220
Appendix A: Error Conditions
221
Appendix B: Stack Liftand LASTX
223
Digitentry Termination
223
Disabling Operations
223
Enablingoperations
224
Neutral Operations
224
LAST X Ot E
225
Appendix C: How Automatic Memory
226
Reallocationoperates
226
Converting Storage Registers to Program Memory
226
Converting Program Memory to Storage Registers
229
Using
229
Appendix D: Battery, Warranty, and Service Information
232
Batteries .Ottt E
232
Installing New Batteries
233
Verifying Proper Operation (Self Tests)
236
Limited One-Yearwarranty
238
Whatisnotcovered
238
Warranty for Consumer Transactions in the Unitedkingdom
238
Obligationto Makechanges
239
Warranty Information
239
S BIVICE Ittt E E E
240
Obtaining Repair Service Inthe United States
240
Obtaining Repair Serviceineurope
240
International Service Information
241
Service Repaircharge
241
Service Warranty
242
Shipping Instructions
242
When You Need Help
243
Temperature Specifications
243
Interference (for UUS.A. Only)
244
Programming Techniquesindex
245
Functionkeyindex
247
Programmingkeyindex
251
Subjectindex
253
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HP HP-11C Specifications
General
Brand
HP
Model
HP-11C
Category
Calculator
Language
English
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