Texas Instruments TI-Nspire CAS User Manual

166 Alphabetical Listing
SinReg
Catalog >
All the lists must have equal dimension
except for Include.
X and Y are lists of independent and
dependent variables.
Iterations is a value that specifies the
maximum number of times (1 through 16) a
solution will be attempted. If omitted, 8 is
used. Typically, larger values result in better
accuracy but longer execution times, and
vice versa.
Period specifies an estimated period. If
omitted, the difference between values in X
should be equal and in sequential order. If
you specify Period, the differences between
x values can be unequal.
Category is a list of category codes for the
corresponding X and Y data.
Include is a list of one or more of the
category codes. Only those data items
whose category code is included in this list
are included in the calculation.
The output of SinReg is always in radians,
regardless of the angle mode setting.
For information on the effect of empty
elements in a list, see “Empty (Void)
Elements,” page 232.
Output
variable
Description
stat.RegEqn
Regression Equation: a•sin(bx+c)+d
stat.a, stat.b,
stat.c, stat.d
Regression coefficients
stat.Resid Residuals from the regression
stat.XReg
Listof data points in the modifiedX List actually used in the regression based on
restrictions of Freq, Category List, and Include Categories
stat.YReg
Listof data points in the modifiedY List actually used inthe regression basedon
restrictions of Freq, Category List, and Include Categories
stat.FreqReg
Listof frequencies corresponding to stat.XReg and stat.YReg

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.