How to find a scalar that contains the average value of the first output?

Hi, I am creating a function that return a matrix of the same size of its input elements containing the sine of the corresponding element. Then for the second output, I want the function to return a scalar that contains the average value of the first output. My code is

function [M,A] = sindeg(deg)
  M = sin(deg*(pi / 180));
  A = mean(M);

However, It only works for something like [0 90 180] but not with [30 60; 90 120].

Answer 1

[Azzi Abdelmalek]

Change this

    A = mean(M(:))

[Alexandra Huff]

That worked. Thank you!