HP 65 - User Manual

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Contents3
Three Ways to Use the HP-654
To Calculate Manually4
Calculator Overview5
To Run a Prerecorded Program6
To Write, Run and Record Your Own Program7
How to Get Started8
To Record Your Program8
Power on8
Initial Display8
Keying in and Entering Numbers9
Simple Arithmetic10
Arithmetic and the Stack11
Left to Right Execution13
Constant Arithmetic14
Manipulating Numbers14
Rotating the Stack14
Exchanging X and y15
General Operations16
Clear Operations16
Clearing Unwanted Prefix16
Clearing Stack Registers16
Display17
Clearing Addressable Registers17
Clearing Entire Calculator17
Clearing Program Memory17
Blinking Display18
Illegible Display18
Multiple Decimal Point Display18
Negative Numbers19
Keying in Large and Small Numbers19
Exact Powers of Ten19
Small Numbers (Negative Exponents)19
Last X20
Recalling Π20
Addressable Registers21
Storing and Recalling Data21
Choosing Addressable Registers22
Calculating in Addressable Registers22
Functions Involving Angles23
Angular Mode23
Degrees, Minutes, Seconds23
Conversions of X26
Conversions27
Functions of X and the Exponential Function27
Programming29
Looking at a Program30
Program Memory30
Program Pointer30
Single Step31
Keycodes31
Merged Keycodes32
Writing Your Own Program33
Bottom Memory Display33
Full Memory Display33
Clearing Memory33
Running the Program34
Magnetic Cards34
Read/Write Operations34
To Record Your Own Program/Prerecorded Programs34
Editing the Program35
Protecting a Card35
Marking a Card35
Positioining the Pointer/Insert Operation35
Delete Operation36
Deleting Consecutive Steps36
Revisiting a Program37
Deleting the Bottom Step37
Backstepping37
Branching38
Labels38
Direct Branching38
Writing a Program with a Direct Branch38
Subroutine Branching40
Secondary Pointer41
Writing a Program with a Subroutine41
Second Subroutines42
Conditional Testing43
Numerical Comparisons43
Two Programs Using Numerical Tests43
Decrement and Skip on Zero45
Writing a Program Using DSZ45
Flags46
Writing a Program Using Flags46
Interrupting Your Program48
DSZ as a Flag48
To Enter Data48
Writing a Program Using R/S to Enter Data48
Controlling Your Program with R/S49
Writing Programs to Solve Your Problems50
Program Stops50
Flowcharting52
Common Mistakes53
Debugging Your Program53
Cued Stops for Debugging53
Programming Errors53
General Information54
Calculation Errors54
Accessories54
Battery Operation55
Recharging and AC Line Operation55
Maintenance56
Battery Pack Replacement56
Additional Operating Information57
Automatic Stack Lift57
Magnetic Card Maintenance57
Programming Tips58
Calculating Range58
Temperature Range58
Underflow/Overflow58
Calculator Service59
Low Power59
Improper Card Reader/Writer Operation59
Battery Failure60
Shipping Instructions60
Index61

Brand	HP
Model	65
Category	Calculator
Language	English

HP 65 - User Manual

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