Texas Instruments TI-Nspire CAS User Manual

centralDiff()
Catalog >
centralDiff(Expr1,Var [=Value][,Step]) ⇒
expression
centralDiff(Expr1,Var [,Step])|Var=Value
⇒ expression
centralDiff(Expr1,Var [=Value][,List]) ⇒
list
centralDiff(List1,Var [=Value][,Step]) ⇒
list
centralDiff(Matrix1,Var [=Value][,Step])
⇒ matrix
Returns the numerical derivative using the
central difference quotient formula.
When Value is specified, it overrides any
prior variable assignment or any current “|”
substitution for the variable.
Step is the step value. If Step is omitted, it
defaults to 0.001.
When using List1 or Matrix1, the operation
gets mapped across the values in the list or
across the matrix elements.
Note: See also avgRC() and d().
cFactor()
Catalog >
cFactor(Expr1[,Var]) ⇒ expression
cFactor(List1[,Var]) ⇒ list
cFactor(Matrix1[,Var]) ⇒ matrix
cFactor(Expr1) returns Expr1 factored with
respect to all of its variables over a
common denominator.
Expr1 is factored as much as possible
toward linear rational factors even if this
introduces new non-real numbers. This
alternative is appropriate if you want
factorization with respect to more than one
variable.
Alphabetical Listing 25

Texas Instruments TI-Nspire CAS Specifications

General

Type	Graphing
Cover	-
Form factor	Pocket
Control type	Buttons, Touch
Product color	Grey, Silver
Digits	- digits
Display tilting	No
Display resolution	320 x 240 pixels
Display number of lines	- lines
Compatible operating systems	Windows XP/2000\\r Mac OS X 10.4/10.5
Battery type	AAA
Power source	Battery
Number of batteries supported	4
USB port	Yes
USB 2.0 ports quantity	1
RAM capacity	16 MB
ROM capacity	20 MB

Weight and Dimensions

Depth	198.3 mm
Width	100 mm
Height	28.7 mm

Summary

Important Information

License

Discusses software license terms and conditions.

Expression Templates

Fraction template

Template for entering fractions.

Exponent template

Template for entering exponents.

Matrix template (m x n)

Template for creating mxn matrices.

First derivative template

Template for calculating first derivatives.

Alphabetical Listing

abs()

Returns the absolute value of the argument.

angle()

Returns the angle of an argument as a complex number.

ANOVA

Performs one-way analysis of variance.

approx()

Evaluates arguments to decimal values.

Symbols

+ (add)

Returns the sum of two arguments.

- (subtract)

Returns the difference between two arguments.

* (multiply)

Returns the product of two arguments.

/ (divide)

Returns the quotient of two arguments.

EOS™ (Equation Operating System) Hierarchy

Order of Evaluation

Details the priority levels for operators and functions.

Parentheses, Brackets, and Braces

Explains how grouped expressions are evaluated first.

Error Codes and Messages

Error code

Lists numeric error codes and their descriptions.

Warning Codes and Messages

Lists numeric warning codes and their associated messages.

Shortcuts for Entering Math Expressions

From the Handheld or Computer Keyboard

Lists shortcuts for handheld and computer input.

From the Computer Keyboard

Lists shortcuts specific to computer keyboard input.