# Mandelbrot

## Details

The Mandelbrot set is the set of complex numbers **c** for which the sequence **a(1) = 0, a(n+1) = a(n)² + c** does not diverge to infinity.

Consider the section of the complex plane where **-2 ≤ Re c ≤ 0.5, -1 ≤ Im c ≤ 1** divided into a 41×81 lattice.
Draw the Mandelbrot set using this grid. That is, for each such lattice point, print █ (U+2588) if it belongs to the set and ▒ (U+2592) if it doesn't.
Note that for each of the lattice points, 1063 iterations are enough to determine whether the sequence corresponding to the point is unbounded or not.

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