Texas Instruments TI-Nspire CAS User Manual

rowSwap()
Catalog >
rowSwap(Matrix1, rIndex1, rIndex2) ⇒
matrix
Returns Matrix1 with rows rIndex1 and
rIndex2 exchanged.
rref()
Catalog >
rref(Matrix1[, Tol]) ⇒ matrix
Returns the reduced row echelon form of
Matrix1.
Optionally, any matrix element is treated as
zero if its absolute value is less than Tol.
This tolerance is used only if the matrix has
floating-point entries and does not contain
any symbolic variables that have not been
assigned a value. Otherwise, Tol is ignored.
• If you use /· or set the Auto or
Approximate mode to Approximate,
computations are done using floating-
point arithmetic.
• If Tol is omitted or not used, the default
tolerance is calculated as:
5E−14 •max(dim(Matrix1)) •rowNorm
(Matrix1)
Note: See also ref(), page 145.
S
sec()
µ key
sec(Expr1) ⇒ expression
sec(List1) ⇒ list
Returns the secant of Expr1 or returns a
list containing the secants of all elements
in List1.
In Degree angle mode:
Alphabetical Listing 153

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