Two functions in the same file causing error: "Maximum recursion limit of 500 reached"

Question

Giorgos Papakonstantinou 2013-5-22

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/76640-two-functions-in-the-same-file-causing-error-maximum-recursion-limit-of-500-reached

I have the following function file.

function y=myfun(x)
y=2*x;
if any(y<0)
      positive(x);
      y=myfun(x);
  end
  end
  function x=positive(x)
  y=myfun(x);
  idx=find(y<0);
  x(idx,1)=-x(idx,1);
  % y=myfun(x);
  end

I want to give a matrix for example x=[-2;2]; and calculate y=2*x; If the any of y is negative i would like to change the x such that y is always positive.

The problem is mostly due to control flow but I cannot solve it. Can you help me?