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HP HP-41CV Quick Reference Manual

HP HP-41CV
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HP-41CV
HP-41CV Quick Reference
A. Thimet
Overview
RUN mode: Clear last entered digit ot entire X-register
PRGM mode: Delete currently displayed program instruction
USER Turn user mode on/off. In user mode, every key can possibly be
programmed to perform some specific internal or programmed function. See
the ASN command.
PRGM Turn programming mode on/off.
Use „GTO ..“ to pack program memory and jump to the beginning of unused
space. In PRGM mode „00 REG nn“ will be displayed where nn is the
number of available registers for program data.
ALPHA Turn ALPHA (string entry) mode on/off.
On the back of the calculator is a list of charcters that can be reached by the
yellow prefix key.
Memory 319 registers. Initially 46 registers are program space and 273 registers are
available for variable storage.
One register can approximately hold 6 program steps, so initially there are
276 program steps available. When the number of storage registers is
reduced to 10 using „SIZE 010“ then 309 registers are available for
programs corresponding to 1854 program instructions.
Available
functions
Use the CAT command to get a list of internal and external functions.
Use XEQ ALPHA <name> ALPHA to execute a command which is not
directly available on the keyboard.
Use the same sequence to enter such commands in a program!
Indirect
addressing
See RCL command
Command Reference
+
Add Y + X X
-
Subtract Y – X X
x
Multiply Y * X X
/
Divide Y / X X
1/x Reciprocal value
10x
Exponential function base 10
ABS Absolute (positive) value of X
ACOS Inverse Cosine using current trigonometry mode
AOFF ALPHA mode off
AON ALPHA modem on. Using the SHIFT key various special keys and functions
can be accessed. See on the back of the calculator.
The ALPHA register can hold up to 24 characters.
PRGM mode: A program line can only hold at most 15 characters. To put a
longer string into the ALPHA register use two program lines and start the
second one with “SHIFT K” which is the APPEND command
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HP HP-41CV Specifications

General IconGeneral
BrandHP
ModelHP-41CV
CategoryCalculator
LanguageEnglish

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