acosd

Inverse cosine in degrees

Usage

acosd(A)

• A should be an array, which can be real or complex.
• It returns an array containing the inverse cosine (in degrees) of each element of A.
• For real elements of A lying in $[-1,1]$, it returns values in $[0,180]$​. (See example below.)
• For real elements of A having absolute value $>1$, it returns complex numbers.
• The output has the same size as A.

Example

Input

x=linspace(-1,1);
y=acosd(x);
plot(x,y,'.-');
xlabel('x')
ylabel('acosd(x) in degrees')

Output