How to input a matrix as input into a function

I'm trying to input a matrix as my input into the function I'm making. When inputting the matrix in the command window when calling the script, I get the error unexpected matlab expression. I'm not sure of the syntax to input a matrix in or if it is even possible to in the first place.

Here is my code below if that helps at all:

function determinantOutput =myDeterminantCalc(a)

if size(a)==3
    determinantOutput= a(1,1) * (a(2,2) * a(3,3) - a(3,2) 
    * a(2,3))- a(1,2) * (a(2,1) * a(3,3) - a(3,1) * a(2,3)) + a(1,3) 
    * (a(2,1) * a(3,2) - a(3,1) * a(2,2));
else
    determinantOutput= (a(1,1)* a(2,2) - a(1,2)*a(2,1));

end

I'm pretty new to MATLAB any help is greatly appreciated, thanks!

Answer 1

[BhaTTa]

Hey @William Brown, you can pass a matrix as an argument to the function, while calling the function from command line make sure you would call it as below:

>>myDeterminantCalc([1 2; 3 4])

Hope it helps.