# How do you do inverse cosine in MATLAB?

**Y = acosd( X )** returns the inverse cosine (cos^{–}^{1}) of the elements of X in degrees. The function accepts both real and complex inputs. For real values of X in the interval [-1, 1], acosd(X) returns values in the interval [0, 180].

## How do you write inverse cosine?

**arccos x**. If y = cos x ⇒ x = cos

^{–}

^{1}(y). Let us consider a few examples to see how the inverse cosine function works. In a right-angled triangle, the cosine of an angle (θ) is the ratio of its adjacent side to the hypotenuse, that is, cos θ = (adjacent side) / (hypotenuse).

## How do you write inverse sine in Matlab?

**Y = asind( X )**returns the inverse sine (sin

^{–}

^{1}) of the elements of X in degrees. The function accepts both real and complex inputs.

## What is arccos in Matlab?

**inverse cosine function**(arccosine function) of X . All angles are in radians. For real values of X in the interval [-1,1] , acos(x) returns the values in the interval [0,pi] .

## How do you take cosine degrees in Matlab?

**Y = cosd( X )**returns the cosine of the elements of X , which are expressed in degrees.