HP HP-18C User manual

HEW LET T-PAC KA R0
HP-18C
Business Consultant
Owner's Manual

HP·18C
Business Consultant
Owner's Manual
FliU- HEWLETT
~~ PACKARD
Edition 1 April 1986
Reorder Number 00018-90001
y r ~ I-

Notice
The information contained in this document is subject to change without
notice.
Hewlett-Packard makes no warranty of any kind with regard to this mate-
rial, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose. Hewlett-Packard shall
not be liable for errors contained herein or for incidental or consequential
damages in connection with the furnishing, performance, or use of this
material.
Hewlett-Packard assumes no responsibility for the use or reliability of its soft-
ware on equipment that is not furnished by Hewlett-Packard .
© 1986 by Hewlett - Packard Co .
This
document contains proprietary information which is protected by copy-
right. All rights
are reserved. No part of this document may be photocopied,
reproduced, or translated to another language without the prior written con-
sent of Hewlett-Packard Company .
Portable Computer Division
1000 N.E. Circle Blvd.
Corvallis, OR 97330, U.S.A.
Printing History
Edition 1 April 1986 Mfg. No . 00018-90002

Contents
1
11 List of Examples
13 How to Use This Manual
15
15
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16
17
20
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21
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25
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29
30
31
31
Starting to Use the HP-18C
Installing the Batteries
Turning
the HP-18C On and Off
Setting the Display Contrast
Using the Display
Using
the Keyboard
The . Key
The IINPUT IKey
Doing Arithmetic
Negative numbers
Using a Result in Another Calculation
Editing and Clearing the Calculator Line
The History Stack
Clearing
the Display
Using
the Alphabetic Keys
Using
the Menu Keys
The MAIN Menu
Changing Menus and Reading Menu Maps
Doing Calculations Using Menus
Making a Graceful I EXIT I
Clearing the Display and Menu Variables
When the HP-18C Doesn 't Understand What You
Want
31 Custom Menus
31 How to Use and Reuse Calculator Memory
Contents 3

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4 Contents
Arithmetic
Introduction
Using the Calculator Line
Simple Arithmetic
Chain Calculations
Percent
Other Keyboard Arithmetic
Using Parentheses in Calculations
Recalling Numbers to the Calculator Line
Using the History Stack
The .1 LAST I Key
Using Registers
Doing Arithmetic Inside Registers
The MATH Menu Functions
Changing the Number of Displayed Decimal
Places
Interchanging the Period and Comma in Numbers
Scientific Notation
General Business Calculations
Introduction
Percent Change
Percent of Total
Markup on Cost
Markup on Price
Clearing the BUS Variables
Sharing Variables Between Menus

4
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60
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100
Time Value of Money
Introduction
The TVM Menu
Cash Flow Diagrams and Signs of Numbers
TVM Calculations
Clearing
the TVM Variables
Loan Calculations
Amortization
Savings Calculations
Leasing Calculations
Interest Rate Conversions
Clearing
the ICONV variables
Cash Flow Calculations
Introduction
The CFLO Menu
Using Number Lists
Cash Flow Diagrams and Signs of Numbers
Entering Cash Flows
Viewing
and Editing the List
Cash Flow Calculations
Running Total and Statistics Calculations
Introduction
The SUM Menu
Using Number Lists
Entering
Numbers and Viewing the Running Total
Viewing
and Editing the List
Statistics Calculations With SUM Lists
103 Curve Fitting and Forecasting
Contents 5

7
8
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6 Contents
Working With Number Lists
Introduction
How Number Lists are Stored
Inserting a Number Into a List
Deleting a
Number From a List
Copying a List Number to the Calculator Line
Creating New Number Lists
Naming and Renaming Number Lists
Viewing
the List Name
Switching Number Lists (GET)
Clearing a Number List
Time, Alarms, and Date Arithmetic
Introduction
Viewing the Time and Date
Setting the Time and Date
Changing the Time and Date Formats
Adjusting the Clock Setting
Alarms
Viewing
and Setting an Alarm
Editing Alarm Settings
Acknowledging
an Alarm
Unacknowledged Alarms
Clearing Alarms
Date Arithmetic
Determining
the Day of the Week for Any Date
Calculating
the Number of Days Between Dates
Determining
Past or Future Dates
Clearing
the Date Arithmetic Variables

9
10
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156
The Formula Solver
Introduction
The Formula List
The SOLVE Menu
Entering Formulas
Calculations With
Custom Menus
Clearing User-Variables
Viewing Long Formulas
Editing a Formula
Naming a Formula
Shared User-Variables
Deleting
the Current Formula and/or Its User-
Variables
Deleting All Formulas
and/or Their User-Variables
Summary of Clear and Delete Operations
How the Solver Works
Halting and Restarting a Numerical Search
Entering Guesses
Writing Formulas
that the Solver Understands
Solver Functions
Conditional Expressions
Printing
Introduction
Printing Modes
The Print Annunciator
Trace Mode
Manual Print Mode
Printing Values Stored and Calculated Using
Menus
Printing Descriptive Notes
Printing an Amortization Table
Contents 7

Appendixes & Index
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8
Contents
Appendix A: Customer Support, Warranty, and
Service
Obtaining Help in Operating the Calculator
Answers to
Common Questions
Limited One-Year Warranty
What We Will Do
What Is Not Covered
Warranty for
Consumer Transactions in the
United Kingdom
Obligation to Make
Changes
Warranty Information
Determining If the Calculator Requires Service
Confirming Calculator Operation-the Self-Test
If the Calculator Requires Service
Obtaining Service in the United States
Obtaining Service in Europe
International Service Information
Shipping Instructions
Service Agreements
Service Charge
Warranty on Service
Appendix B: More About HP-18C Calculations
IRR% Calculations
Possible
Outcomes of Calculating IRR%
Halting and Restarting the IRR% Calculation
Storing a Guess for IRR%
Solver Calculations
Direct Solutions
Numerical Solutions
Formulas
Used by HP-18C Menus
Actuarial Functions
General Business
Time Value of
Money
Amortization
Interest Rate Conversions
Cash Flow Calculations
Sum and Statistics
Forecasting