How to program a function with 2 variables

Question

Jens Petit-jean 2021-2-16

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https://ww2.mathworks.cn/matlabcentral/answers/746957-how-to-program-a-function-with-2-variables

评论： Walter Roberson 2021-2-19

Hello, I need to program this as a function (not as an anonymous, but as a function that you can use multiple times in other programs). I can do this when there is only one variables but I really can't do it with 2 variables. Can someone help me?

Thanks in advance

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Walter Roberson 2021-2-19

Duplicated by later https://www.mathworks.com/matlabcentral/answers/747757-functions-with-2-variables?s_tid=srchtitle which has solutions.

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Answer 1

Pranav Verma 2021-2-19

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https://ww2.mathworks.cn/matlabcentral/answers/746957-how-to-program-a-function-with-2-variables#answer_627559

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Hi Jens,

You can write a simple function taking x and k as input and put the conditions as mentioned:

    function val = func(x,k)
        val = 1;
        if(isinteger(int64(k)   ))
            if (4*k <= x && x < 4*k + 2)
                val = 4 - (2 * (x - (4 * k) - 1)^2);
            elseif (isinteger(k) && 4*k-2 <= x && x < 4*k)
                val =   2 * (x - (4*k) + 1)^2;
            end
        end
    end