Y undefined in complex number c = x+i*y

Hey :)

When I execute this code, the interpreter complains about y in the complex number c. I'm stuck :( Does anybody know the answer?

function m = mandelbrot(x,y)
  
  nMax = 1000;
  n=0;
  z = 0;
  c = x+i*y;
  
  for n = [0:nMax]
    z = z**2 + c ;
  endfor
  if abs(z)>2
    m=1;
  else
    m=0;
  endif
end

Answer 1

[Mischa Kim]

I would assume it's the z**2 (the double star) that's causing the problem. What are you trying to do there? There's a couple of other issues ( endfor , e.g.)...

Answer 2

[Martial]

Thank you Mischa :) It's an alternative way for writing x^2 in Octave.

[Mischa Kim]

That's what I thought. Welcome to MATLAB, Martial.