HP HP-27S User manual

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Scientific Calculator
Owner's Manual

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PRT
1 . Menu keys
2. Clear portions of memory
3. Enter data
4. Move through lists
5. Shift Key
6. Calculator OFF
7. Calculator ON;
clear calculator line
8. Available memory
9. Full precision of number
10. Display format; modes
1 1. Print calculator line
12. Numeric and control menus
13. Applications
14. Backspace
15. Previous menu
16. MAIN display
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Ownerts Manual
HEWLETI
PACKARD
Edition 2 February 1988
Reorder Nurnber A0027-90028

Notlce
For warranty and regulatory information for this calculator, see pages
I99 and 203.
This manual and any keystroke programs contained herein are Pro-
vided "as is" and are subject to change without notice. Hewlett'
packard Gompany makes no warranty of any kind with regard to
this manual or the keystroke programs contalned herein, includ-
ing, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose. Hewlett-Packard Co. shall not
be liable for any errors or for incidental or consequential damages in
connection with the furnishing, performance , ot use of this manual or
the keystroke Programs contained herein.
o Hewlett-Packard Co. 1987. All rights reserved. Reproduction, ad-
aptation, or translation of this manual, including any Prograrils, is
piohibited without prior written permission of Hewlett-Packard Com-
pany, except as atlowed under the copyright laws. Hewlett-Packard
bo*pany grants you the right to use any program contained in this
manual in this Hewlett-Packard calculator.
The programs that control your calculator are copyrighted ut i all
righti uri reserved. Reproduction, adaptation, or translation of those
prograrns without prior written permission of Hewlett-Packard Co. is
also prohibited.
Portable GomPuter DiYision
IOOO ltI.E Girc]e Blvd.
Corvallis, OF 97330' U.S.A, \

Printing History
Edition I
Edition 2October 1987 February 1988 Mfg. No. 00427-90029 Mfg. No. 00027-90046
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Gontents
tt List of Examples
How to Use This llanual
l4
t5
15
t5
t5
r6
r8
20
20
21
2t
2l
2t
22
22
22
22
25
27
28
28
30
Getting Started
Power On and Off
The Display
The Display Contrast
The MAIN Display and Menus
The Calculator Line
Display Messages
Annunciators
The Keyboard
The I (Shift) K"y
The l-lNPUfl Key
Editing and Clearing the Calculator Line
Viewing the History Stack With E and E
Menu Keys
Clearing Portions of Memory With
TM
Using Menus
Applications
Numeric Function Menus
Control Menus
Calculations With Variables in Menus
Display Mode and Format of Numbers
Gontents

31
32
32
34
34
34
35
35
36
38
40
Specifying the Number of Displayed Decimal
Places (FIX Mode)
Displaying the Full Precision of Numbers
Scientific and Engineering Notation
Interchanging the Period and Comma
Showing the Full Precision of a Number
Available Calculator Memory
Beeper Function
Introducing the Solver and the ALPHA Menu
Tpitg Alphabetic Information
Editing Alphabetic Information
Solving an Equation
242
42
42
43
43
45
46
46
49
51
53
53
59
60
61
62
Keyboard Arithmetic and J{umeric Functions
The Calculator Line
Arithmetic Operators
Chain Calculations
Operator Priority
Using Parentheses in Calculations
Reusing the Previous Result ( !| LAm)
Using Registers
Numeric Functions
General Functions
Logarithmic Functions
Trigonometric and Angle Functions
Probability Functions
Hyperbolic Functions
Parts of Numbers
Range of Numbers
363
63
65
65
67
Base Gonversions and Base Arithmetic
Switchirg Bases
Representation of Numbers
Range of HEX, OCT and BIN Numbers
Arithmetic Operations
Gontents

469
70
71
72
74
74
75
76
76
79
8r
85
87
Statistics
Entering the STAI Application
Entering Data and Ciiculating the Running Tjotal
Viewing and Editing the List
copying a List Number to the Calculator Line
Naming and Renami.g a List
Switchirg Lists and Creating New Lists (GET)
Clearing a List
One-Variable Statistics
Statistics Operations With TWo Lists
Linear Regression, Curve Fitting, and Estimation
Weighted Mean and Grouped Standard
Deviation
Summation Statistics
589
90
91
92
93
93
94
94
95
95
The Equation Solver
Entering the SOLVE Application
Entering Equations
Doing Solver Calculations
Clearing Solver Variables
Viewing and Editing the Equation
Naming an Equation
Shared Solver Variables
Deleting the Current Equation and/ or Its Variables
Deleting All Equations and/ or Their variables
Gontents

96 The Syntax of Equations
98 Solver Functions
103 Conditional Expressions (IF Function)
106 Creating Menus for Multiple Equations (S
Function)
108 The Summi^g (>) Function
I t 0 Summing Operations With STAI Lists
1 10 How the Solver Works
I 10 Direct and Iterative Solutions
111 Halting and Restarting an Iterative Search
112 Entering Guesses
I 13 Outcomes of an Iterative Solution
v 6 117 Time Ualue of Money
I 18 Entering the TVM Application
\"/ l2O Cash Flow Diagrams and Sign Convention
\-/ 122 TVM Calculations
122 Clearing the TVM Variables
\'/ 123 Loan Calculations
\-, 127 Savings Calculations
{ 30 Amortization
v 131 Displaying an Amortization Schedule
\.., 134 Printing an Amortization Schedule
v 7 136 Time, Appointments, and Date Arithmetic
v 136 Viewing the Time and Date
\r 137 Setting the Time and Date
139 Changing the Time and Date Formats
\/ 139 Adjusting the Clock Setting
l4O Appointments
v' l4o Viewing and Setting an Appointment
\-/ 142 Acknowledging an Appointment
l/li| Unacknowledged Appointments
\-/ l{3 Clearing eppiintments
v
:Gontents 7

145
145
146
147
147
Date Arithmetic
Determining the Duy of the week for Any Date
Calculating the Number of Days Between Dates
Calculating Past or Future Dates
Clearing the Date Arithmetic Variables
I148
r49
149
150
150
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152
r53
Printing
Printing Speed and the Printer's Power Source
Printing the Calculator Line (lmn I
Printing Other Information (ll pRrr.rrERl)
Printing Variables, Lists, and Appointments
Printing Descriptive Messages
Trace Printing
Interrupting the Printer
9r54
154
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r58
t60
t63
r65
r66
r68
171
172
t76
r79
r8r
r83
t86
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Additional Examples
Vector Calculations
Adding TWo Vectors in Polar Coordinates
Angle Between TWo Vectors
Projection of One Vector on Another
Laws of Sines and Cosines
Probability Calculations
Simulating a Toss of Dice
Motion of a Projectile
The Catenary Equation
Distance Between TWo Locations
Leasing Calculations
Interest Rate Conversions
Finding Several Roots of a Function
Moving Average
Chi-Squared (x2) Statistics
Calculating Subtotals
Number of Days Until a Speciat Day
Gontents