Texas Instruments TI-Nspire CAS - Page 36

36 Alphabetical Listing
cos⁻¹()
µ key
cos⁻¹(squareMatrix1) ⇒ squareMatrix
Returns the matrix inverse cosine of
squareMatrix1. This is not the same as
calculating the inverse cosine of each
element. For information about the
calculation method, refer to cos().
squareMatrix1 must be diagonalizable. The
result always contains floating-point
numbers.
In Radian angle mode and Rectangular
Complex Format:
To see the entire result, press £ and then
use ¡and¢ to move the cursor.
cosh()
Catalog >
cosh(Expr1) ⇒ expression
cosh(List1) ⇒ list
cosh(Expr1) returns the hyperbolic cosine
of the argument as an expression.
cosh(List1) returns a list of the hyperbolic
cosines of each element of List1.
In Degree angle mode:
cosh(squareMatrix1) ⇒ squareMatrix
Returns the matrix hyperbolic cosine of
squareMatrix1. This is not the same as
calculating the hyperbolic cosine of each
element. For information about the
calculation method, refer to cos().
squareMatrix1 must be diagonalizable. The
result always contains floating-point
numbers.
In Radian angle mode:
cosh⁻¹()
Catalog >
cosh⁻¹(Expr1) ⇒ expression
cosh⁻¹(List1) ⇒ list
cosh⁻¹(Expr1) returns the inverse
hyperbolic cosine of the argument as an
expression.