Texas Instruments TI-Nspire CAS User Manual

right()
Catalog >
Returns the rightmost Num elements
contained in List1.
If you omit Num, returns all of List1.
right(sourceString[, Num]) ⇒ string
Returns the rightmost Num characters
contained in character string sourceString.
If you omit Num, returns all of
sourceString.
right(Comparison) ⇒ expression
Returns the right side of an equation or
inequality.
rk23 ()
Catalog >
rk23(Expr, Var, depVar, {Var0, VarMax},
depVar0, VarStep [, diftol]) ⇒ matrix
rk23(SystemOfExpr, Var, ListOfDepVars,
{Var0, VarMax}, ListOfDepVars0,
VarStep[, diftol]) ⇒ matrix
rk23(ListOfExpr, Var, ListOfDepVars,
{Var0, VarMax}, ListOfDepVars0,
VarStep[, diftol]) ⇒ matrix
Uses the Runge-Kutta method to solve the
system
with depVar(Var0)=depVar0 on the
interval [Var0,VarMax]. Returns a matrix
whose first row defines the Var output
values as defined by VarStep. The second
row defines the value of the first solution
component at the corresponding Var
values, and so on.
Expr is the right hand side that defines the
ordinary differential equation (ODE).
SystemOfExpr is a system of right-hand
sides that define the system of ODEs
(corresponds to order of dependent
variables in ListOfDepVars).
Differential equation:
y'=0.001*y*(100-y) andy(0)=10
To see the entire result, press £ and then
use ¡and¢ to move the cursor.
Same equation withdiftol set to 1.E−6
Compare above result with CAS exact
solution obtained using deSolve() and
seqGen():
System of equations:
Alphabetical Listing 149

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.