Texas Instruments TI-Nspire CAS User Manual

154 Alphabetical Listing
sec()
µ key
Note: The argument is interpreted as a
degree, gradian or radian angle, according
to the current angle mode setting. You can
use °,
G
, or
r
to override the angle mode
temporarily.
sec⁻¹()
µ key
sec⁻¹(Expr1) ⇒ expression
sec⁻¹(List1) ⇒ list
Returns the angle whose secant is Expr1 or
returns a list containing the inverse secants
of each element of List1.
Note: The result is returned as a degree,
gradian, or radian angle, according to the
current angle mode setting.
Note: You can insert this function from the
keyboard by typing arcsec(...).
In Degree angle mode:
In Gradian angle mode:
In Radian angle mode:
sech()
Catalog >
sech(Expr1) ⇒ expression
sech(List1) ⇒ list
Returns the hyperbolic secant of Expr1 or
returns a list containing the hyperbolic
secants of the List1 elements.
sech⁻¹()
Catalog >
sech⁻¹(Expr1) ⇒ expression
sech⁻¹(List1) ⇒ list
Returns the inverse hyperbolic secant of
Expr1 or returns a list containing the
inverse hyperbolic secants of each element
of List1.
Note: You can insert this function from the
keyboard by typing arcsech(...).
In Radian angle and Rectangular complex
mode:

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