How to transfer matrix values loaded in one subfunction to the main function?

Hi, I want the matrix values loaded in subfuction can be used in the main function which calls the subfunction. For example: function calulation (main function) [a b]= calculation2 (fubfunction) when the subfunction calculation2 is runing, two matrix is loaded: A=(''); B=(''). My question is now: How can I use the A and B value inside the calculation and then I don't need to reload the two matrix again.

thanks

Answer 1

[Giridharan Kumaravelu]

You could use them as global variables as shown below

function calculation
   global A
   global B
   [a,b] = calculation2();
   A
   B
end

function [a,b] = calculation2()
   a = 0;
   b = 0;
   global A
   global B
   A = eye(3);
   B = eye(4);
end