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

Question

ruik zhang 2018-7-25

0
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https://ww2.mathworks.cn/matlabcentral/answers/412100-how-to-transfer-matrix-values-loaded-in-one-subfunction-to-the-main-function

编辑： Giridharan Kumaravelu 2018-7-25

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

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Answer 1

Giridharan Kumaravelu 2018-7-25

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https://ww2.mathworks.cn/matlabcentral/answers/412100-how-to-transfer-matrix-values-loaded-in-one-subfunction-to-the-main-function#answer_330307

编辑：Giridharan Kumaravelu 2018-7-25

在 MATLAB Online 中打开

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