HP 40gs - Manual (Page 6)

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Symbolic calculations........................................................ 13-20
Finding derivatives ....................................................... 13-21
Program constants and physical constants ........................... 13-24
Program constants........................................................ 13-25
Physical constants ........................................................ 13-25
14 Computer Algebra System (CAS)
What is a CAS? ................................................................. 14-1
Performing symbolic calculations .......................................... 14-1
An example .................................................................. 14-2
CAS variables.................................................................... 14-4
The current variable ....................................................... 14-4
CAS modes ....................................................................... 14-5
Using CAS functions in HOME ............................................. 14-7
Online Help....................................................................... 14-8
CAS functions in the Equation Writer .................................... 14-9
ALGB menu................................................................. 14-10
DIFF menu................................................................... 14-16
REWRI menu ............................................................... 14-28
SOLV menu ................................................................. 14-33
TRIG menu .................................................................. 14-38
CAS Functions on the MATH menu ..................................... 14-45
Algebra menu ............................................................. 14-45
Complex menu ............................................................ 14-45
Constant menu ............................................................ 14-46
Diff & Int menu ............................................................ 14-46
Hyperb menu .............................................................. 14-46
Integer menu ............................................................... 14-46
Modular menu............................................................. 14-51
Polynomial menu ......................................................... 14-55
Real menu................................................................... 14-60
Rewrite menu .............................................................. 14-60
Solve menu ................................................................. 14-60
Tests menu .................................................................. 14-61
Trig menu ................................................................... 14-61
CAS Functions on the CMDS menu ..................................... 14-62
15 Equation Writer
Using CAS in the Equation Writer ....................................... 15-1
The Equation Writer menu bar......................................... 15-1
Configuration menus ...................................................... 15-3
Entering expressions and subexpressions............................... 15-5
How to modify an expression ....................................... 15-11
hp40g+.book Page vi Friday, December 9, 2005 1:03 AM