How can I implement the following function block

Question

Brian Kiprono 2022-12-2

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https://ww2.mathworks.cn/matlabcentral/answers/1869837-how-can-i-implement-the-following-function-block

回答： Eric Delgado 2022-12-3

I need to implement the function block shown. I used user defined function but ran into a few problems. variables are in a script/and workspace m and l. The u(i...) are inputs to the block. The error is that the variable is not defined as shown in 2nd image

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Answer 1

Eric Delgado 2022-12-3

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https://ww2.mathworks.cn/matlabcentral/answers/1869837-how-can-i-implement-the-following-function-block#answer_1118877

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Just pass all the arguments to your function, not only the array "u".

function output = NameOfYourFunction(m, I, u)
    arguments
        m double = 1
        I double = 2
        u double = [45,45]
    end
    
    output = m * I * ( u(2)^2) * cos(u(1)) * sin(u(1));
end