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Manuals
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HP Manuals
Calculator
HP-20S
Owner's manual
HP -20S Owner's Manual
Scientific calculator
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:
Owner's manual
(132 pages)
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Contents
Table of Contents
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Table of Contents
Product View
Hewlett-Packard Quality
Features
Contents
Getting Started
Power on and off
Adjusting the Display Contrast
Simple Arithmetic Calculations
Understanding the Display and Keyboard
The Cursor
Clearing the Calculator
Clearing Memory
Annunciators
The Shift Keys
The Input Key
The Swap Key
The Alpha Keys
Introducing the Math Functions
One-Number Functions
Display Format of Numbers
Two-Number Functions
Specifying the Number of Displayed Decimal Places (FIX)
Displaying the Full Precision of Numbers (ALL)
Scientific and Engineering Notation
Scientific Notation (SCI)
Engineering Notation (ENG)
Entering Numbers with Exponents (E)
Interchanging the Period and Comma
Full Precision of a Number (SHOW)
Range of Numbers
Arithmetic and Storage Registers
Chain Calculations
Operator Priority and Pending Operations
Using Parentheses
Reusing the Previous Result (LAST)
Exchanging Two Numbers (SWAP)
Using Storage Registers
Clearing Registers
Storage Register Arithmetic
Numeric Functions
General and Logarithmic Functions
Reciprocal
Percent Functions
Percent Change
Pi
Trigonometric Modes and Functions
Changing the Trigonometric Mode
Trigonometric Functions
Angle and Hour Conversions
Coordinate Conversions
Converting from Rectangular to Polar Coordinates
Converting from Polar to Rectangular Coordinates
Probability Functions
Factorial
Combinations and Permutations
Probability Formulas
Hyperbolic Functions
Parts of Numbers
Unit Conversions
Base Conversions and Base Arithmetic
Switching Bases
Example: Converting between Bases
Representation of Numbers
Range of Hexadecimal, Octal, and Binary Numbers
Range of Numbers for Base Conversions
Arithmetic Operations
Statistical Calculations
Entering Statistical Data
Entering Data for One-Variable Statistics
Entering Data for Two-Variable Statistics or Weighted Mean
Correcting Statistical Data
Clearing Statistical Data
Summary of Statistical Calculations
Mean, Standard Deviation, and Summation Statistics
Calculating the Population Standard Deviation
Linear Regression and Estimation
Weighted Mean
Statistical Formulas
Programming
Creating Programs
Line Numbers
Keycodes
Columns
Checksum
Program Boundaries (LBL and RTN)
Program Labels
Return
Entering Programs
To Enter a Program into Memory
Data Input
Positioning the Program Pointer
Running Programs
Starting Programs with XEQ
Starting Programs with GTO and R/S
Stopping Programs
Error Stops
Clearing Programs
Editing Programs
Deleting Program Lines
Inserting Program Lines
Stepping through Programs
Sample Program: Pythagorean Theorem
Sample Program: Random Number Generator
Subroutines
Calling Subroutines (XEQ)
Nested Subroutines
Main Program
End of Program
Branching (GTO)
Conditional Instructions-Decisions and Control
Keystrokes for Other Conditionals
Available Program Memory
Nonprogrammable Functions
Built-In Program Library
Root Finder
Program Instructions
Remarks
Numerical Integration (Int)
Complex Operations (CPL)
3X3 Matrix Operations (3 by 3)
Quadratic Equation (Quad)
Curve Fitting Models and Transformations
Assistance, Batteries, Memory, and Service
Low Power Annunciator
Installing Batteries
Battery Specifications
Resetting the Calculator
Erasing Continuous Memory
Environmental Limits
Determining if the Calculator Requires Service
If the Calculator Won't Turn on (Nothing Is Visible in the Display)
If the Calculator Doesn’t Respond to Keystrokes (Nothing Happens When You Press any of the Keys)
If the Calculator Responds to Keystrokes but You Suspect that It Is Malfunctioning
Confirming Calculator Operation-The Self-Test
Limited One-Year Warranty
If the Calculator Requires Service
Regulatory Information
Messages
Index
Special Characters
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Specifying Number of Displayed Decimal Places
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