Texas Instruments TI-Nspire CAS User Manual

90 Alphabetical Listing
integral
See ∫(), page 217.
interpolate ()
Catalog >
interpolate(xValue, xList, yList,
yPrimeList) ⇒ list
This function does the following:
Given xList, yList=f(xList), and
yPrimeList=f'(xList) for some unknown
function f, a cubic interpolant is used to
approximate the function f at xValue. It is
assumed that xList is a list of
monotonically increasing or decreasing
numbers, but this function may return a
value even when it is not. This function
walks through xList looking for an interval
[xList[i], xList[i+1]] that contains xValue.
If it finds such an interval, it returns an
interpolated value for f(xValue); otherwise,
it returns undef.
xList, yList, and yPrimeList must be of
equal dimension ≥ 2 and contain
expressions that simplify to numbers.
xValue can be an undefined variable, a
number, or a list of numbers.
Differential equation:
y'=-3•y+6•t+5 and y(0)=5
To see the entire result, press £ and then
use ¡and¢ to move the cursor.
Use the interpolate() function to calculate the
function values for the xvaluelist:
invχ
2
()
Catalog >
invχ
2
(Area,df)
invChi2(Area,df)
Computes the Inverse cumulative χ
2
(chi-
square) probability function specified by
degree of freedom, df for a given Area
under the curve.
invF()
Catalog >
invF(Area,dfNumer,dfDenom)
invF(Area,dfNumer,dfDenom)

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