HP 35s scientific calculator

user's guide

HEdition 1

HP part number F2215AA-90001

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1988, 1990-1991, 2003, 2007 Hewlett-Packard Development Company, L.P.

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Hewlett-Packard Company

16399 West Bernardo Drive

MS 8-600

San Diego, CA 92127-1899

USA

Printing History

Edition 1 February 2007

Contents

Part 1. Basic Operation

1. Getting Started............................................................1-1Important Preliminaries ............................................................. 1-1

Turning the Calculator On and Off ....................................... 1-1

Adjusting Display Contrast................................................... 1-1

Highlights of the Keyboard and Display ..................................... 1-2

Shifted Keys....................................................................... 1-2

Alpha Keys ........................................................................ 1-3

Cursor Keys ....................................................................... 1-3

Backspacing and Clearing................................................... 1-4

Using Menus...................................................................... 1-6

Exiting Menus .................................................................... 1-8

RPN and ALG Modes.......................................................... 1-9

Undo key......................................................................... 1-11

The Display and Annunciators ................................................. 1-12

Keying in Numbers................................................................ 1-15

Making Numbers Negative................................................ 1-15

Exponents of Ten .............................................................. 1-15

Understanding Entry Cursor ............................................... 1-17

Range of Numbers and OVERFLOW................................... 1-17

Performing Arithmetic Calculations........................................... 1-18

Single Argument or Unary Operations................................. 1-18

Two Argument or Binary Operations ................................... 1-19

Controlling the Display Format ................................................ 1-21

Periods and Commas in Numbers () () .......................... 1-23

Contents 1

Complex number display format (, , )....................1-24

SHOWing Full 12Digit Precision .......................................1-25

Fractions ...............................................................................1-26

Entering Fractions..............................................................1-26

Messages..............................................................................1-27

Calculator Memory ................................................................1-28

Checking Available Memory ..............................................1-28

Clearing All of Memory .....................................................1-29

2. RPN: The Automatic Memory Stack ..............................2-1What the Stack Is.....................................................................2-1

The X and YRegisters are in the Display................................2-3

Clearing the XRegister........................................................2-3

Reviewing the Stack ............................................................2-3

Exchanging the X and YRegisters in the Stack......................2-4

Arithmetic How the Stack Does It .............................................2-5

How ENTER Works .............................................................2-6

How to Clear the Stack ........................................................2-7

The LAST X Register ..................................................................2-8

Correcting Mistakes with LAST X ..........................................2-9

Reusing Numbers with LAST X ............................................2-10

Chain Calculations in RPN Mode.............................................2-12

Work from the Parentheses Out ..........................................2-12

Exercises..........................................................................2-14

Order of Calculation .........................................................2-14

More Exercises .................................................................2-16

3. Storing Data into Variables .........................................3-1Storing and Recalling Numbers .................................................3-2

Viewing a Variable .................................................................3-4

2 Contents

Using the MEM Catalog ........................................................... 3-4

The VAR catalog................................................................. 3-4

Arithmetic with Stored Variables................................................ 3-6

Storage Arithmetic .............................................................. 3-6

Recall Arithmetic................................................................. 3-7

Exchanging x with Any Variable ............................................... 3-8

The Variables "I" and "J".......................................................... 3-9

4. RealNumber Functions ...............................................4-1Exponential and Logarithmic Functions ....................................... 4-1

Quotient and Remainder of Division........................................... 4-2

Power Functions ...................................................................... 4-2

Trigonometry........................................................................... 4-3

Entering .......................................................................... 4-3

Setting the Angular Mode.................................................... 4-4

Trigonometric Functions ....................................................... 4-4

Hyperbolic Functions................................................................ 4-6

Percentage Functions ............................................................... 4-6

Physics Constants .................................................................... 4-8

Conversion Functions ............................................................. 4-10

Rectangular/Polar Conversions .......................................... 4-10

Time Conversions ............................................................. 4-13

Angle Conversions............................................................ 4-13

Unit Conversions .............................................................. 4-14

Probability Functions .............................................................. 4-15

Factorial .......................................................................... 4-15

Gamma........................................................................... 4-15

Probability ....................................................................... 4-15

Parts of Numbers................................................................... 4-16

Contents 3

5. Fractions.....................................................................5-1Entering Fractions ....................................................................5-1

Fractions in the Display.............................................................5-2

Display Rules ......................................................................5-2

Accuracy Indicators.............................................................5-3

Changing the Fraction Display...................................................5-4

Setting the Maximum Denominator ........................................5-4

Choosing a Fraction Format .................................................5-6

Examples of Fraction Displays...............................................5-8

Rounding Fractions...................................................................5-8

Fractions in Equations...............................................................5-9

Fractions in Programs .............................................................5-10

6. Entering and Evaluating Equations ...............................6-1How You Can Use Equations.....................................................6-1

Summary of Equation Operations...............................................6-3

Entering Equations into the Equation List......................................6-4

Variables in Equations .........................................................6-4

Numbers in Equations.............................