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

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ruik zhang
ruik zhang 2018-7-25
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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回答（1 个）

Giridharan Kumaravelu
编辑：Giridharan Kumaravelu 2018-7-25
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

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