The inverse cosine of the argument.

Syntax

c = Acos(m)

Arguments

Name

Description

m

A scalar, vector or a matrix.

Output

Name

Description

c

The inverse cosine of each entry in radians.

Example

Find the inverse cosine of elements in a matrix:

Syntax

C = Acos([0.1,0.2;0.3,0.4])

Result

C = 1.4706  1.3694

   1.2661  1.1593

Comments

The argument values must be between -1 and 1 for valid results.

See Also:

Asin

Atan

Cos

Sin

Tan