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Helwett Packard Manuals
Calculator
HP-55
Owner's handbook manual
Helwett Packard HP-55 Owner's Handbook Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Versatility Is Everything
Section 1: Getting Started
Power on
Keyboard
Gold Operations
Blue Operations
Initial Display
Keying in and Entering Numbers
Simple Arithmetic
Arithmetic and the Stack
Left to Right Execution
Constant Arithmetic
Manipulating Numbers in the Stack
Rotating the Stack
Exchanging Xand y
Storing and Recalling Numbers
Storing Numbers
Recalling Numbers
Storage Register Arithmetic
Clearing Operations
Clearing Storage Registers and the Stack
Clearing Prefix Keys
Section 2: Fundamental Operations
The Display Format
Negative Numbers
Entering Exponents
Powersof Ten
Negative Exponents
Last X
To Avoid Reentering Numbers
Basic Functions
To Correct Input Errors
Reciprocal
Square and Square Root
Percentage
Writing a Program
Setting the Program Pointer
Keying Ina Program
Endinga Program
Running the Program
Single Step and Back Step
Changing or Correcting a Program
Branching
Simple Branching
Conditional Branching
Debugging Your Programs
Program Stops
Single-Step Execution
Common Mistakes
Appendix A: General Information
Accessoiies
Optional Accessories
Standard Accessories
Battery Operation
Recharging and AC Line Operation
Battery Pack Replacement
Appendix B: Additional Operating Information Automatic Stack Lift
Calculating Range
Underflow
Temperature Range
Appendix C: Calculator Troubleshooting
Blank Display
Multiple Decimal Point Display
Blurring Display
Flashing Display
Battery Failure
Warranty
Shipping Instructions
Index
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