HP 15c Collector's Edition User Manual

278 Function Summary and Index
Storage
O Store. Stores a
copy of a number into
the storage register
specified {0 to 9, .0 to .9,
V, %} (page 42). Also
used for storage register
arithmetic: new register
contents = old register
contents {+, -, *,
÷} display (page 44).
l Recall. Recalls a
copy of the number from
the storage register
specified {0 to 9, .0 to .9,
V, %} (page 42). Also
used for storage register
arithmetic: new display =
old display {+, -
*, ÷} register
contents (page 44).
CLEAR Q Clears
contents of all storage
registers to zero
(page 43).
K Recalls into
the display the number
present before the
previous operation
(page 35).
Trigonometry
D Sets decimal
Degrees mode for
trigonometric
functions—indicated by
absence of GRAD or
RAD annunciator (page
26). Not operative for
complex trigonometry.
R Sets Radians mode
for trigonometric
functions—indicated by
RAD annunciator
(page 26).
g Sets Grads mode
for trigonometric
functions—indicated by
GRAD annunciator
(page 26). Not operative
for complex
trigonometry.
[, \, ]
Compute sine, cosine, or
tangent, respectively, of
number in display (X-
register) (page 26).
,, {, /
Compute arcsine,
arccosine, or arctangent,
respectively, of number
in display (X-register)
(page 26).
Programming Summary
and Index
¥ Program/Run
mode. Sets the
calculator to Program
mode (PRGM
annunciator on) or Run
mode (PRGM
annunciator cleared)
(page 66).
CLEAR M In
Program mode: clears all
program memory and
deallocates all program
registers. In Run mode:
only resets calculator to
line 000 (page 67).
W Displays current
status of calculator
memory (number of
registers dedicated to
data storage, the
common pool, and
program memory)
(page 215).

HP 15c Collector's Edition Specifications

General

Model	HP 15c Collector's Edition
Category	Calculator
Type	Scientific
Power Source	Battery
Manufacturer	HP
Display	LCD
Functions	complex numbers, matrix operations

Summary

Introduction

This Handbook

Outlines the structure of the manual, detailing its parts and how to use it for learning.

The HP Community

Discusses user groups and websites for HP calculator enthusiasts and information sharing.

Part I: HP 15c Fundamentals

Section 1: Getting Started

Covers basic operations like powering on, keyboard layout, and primary/alternate functions.

Section 2: Numeric Functions

Explains essential numeric operations including logs, trig, powers, and conversions.

Section 3: The Automatic Memory Stack, LAST X, and Data Storage

Details the RPN stack, LAST X register, and data storage operations.

Part II: HP 15c Programming

Section 6: Programming Basics

Introduces core programming concepts: creating, loading, running programs, and memory.

Section 8: Program Branching and Controls

Covers controlling program flow using branching, loops, and conditional tests.

Part III: HP 15c Advanced Functions

Section 11: Calculating With Complex Numbers

Covers entering, manipulating, and performing calculations with complex numbers.

Section 12: Calculating With Matrices

Explains matrix operations, including dimensioning, element access, and calculations.

Section 13: Finding the Roots of an Equation

Details using the SOLVE function for numerical root finding and equation solving.

Section 14: Numerical Integration

Explains how to perform numerical integration using the ∫f(x)dx key and subroutines.

Appendix A: Error Conditions

Error 8: No Root

Explains the error when the SOLVE function cannot find a root.

Error 0: Improper Mathematics Operation

Lists and explains errors related to mathematical operations and illegal arguments.

Appendix D: A Detailed Look at SOLVE

How SOLVE Works

Explains the numerical technique and logic behind the SOLVE algorithm.

Finding Several Roots

Discusses methods for finding multiple roots of an equation using the SOLVE function.