Texas Instruments TI-Nspire CAS User Manual

124 Alphabetical Listing
nPr()
Catalog >
nPr(Expr1, Expr2) ⇒ expression
For integer Expr1 and Expr2 with Expr1 ≥
Expr2 ≥ 0, nPr() is the number of
permutations of Expr1 things taken Expr2
at a time. Both arguments can be integers
or symbolic expressions.
nPr(Expr, 0 ⇒ 1
nPr(Expr, negInteger) ⇒ 1 / ((Expr+1)•
(Expr+2) ... (expression−negInteger))
nPr(Expr, posInteger) ⇒ Expr•(Expr−1) ...
(Expr−posInteger+1)
nPr(Expr, nonInteger) ⇒ Expr! /
(Expr−nonInteger)!
nPr(List1, List2) ⇒ list
Returns a list of permutations based on the
corresponding element pairs in the two
lists. The arguments must be the same size
list.
nPr(Matrix1, Matrix2) ⇒ matrix
Returns a matrix of permutations based on
the corresponding element pairs in the two
matrices. The arguments must be the same
size matrix.
npv()
Catalog >
npv(InterestRate,CFO,CFList[,CFFreq])
Financial function that calculates net
present value; the sum of the present
values for the cash inflows and outflows. A
positive result for npv indicates a profitable
investment.
InterestRate is the rate by which to
discount the cash flows (the cost of money)
over one period.
CF0 is the initial cash flow at time 0; it
must be a real number.
CFList is a list of cash flow amounts after
the initial cash flow CF0.

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.