mandelbrot set on a 20 years old graphic calculator

hi!
I recently managed to get this old sharp scientific calculator working
and I coded mandelbrots fractal on it !
IMG_20211219_075045_1.jpg
IMG_20211219_075018_1.jpg

it's has a low iteration and it isn't really that high resolution but on this calculator with a few mhz cpu running a BASIC interpeter on top this is really the maximum quality you can get. It's also notable that this took all night to "render" !
here's the code
sz=0.04 ClrG DispG Range -2,2,0.1,-2,2,0.1 mi=25 i=0 ca=-2 Label x If ca = 2+sz Goto end cb=-2 ca=ca+sz Label y cb=cb+sz i=0 za=ca zb=cb Label b i=i+1 za=za*za - zb*zb + ca zb=2*za*zb + cb If i>mi Goto bi If za^2>4 Goto ab If za^2>4 Goto bb Goto b Label bi Plot ca,cb Goto e Label ab Goto e Label bb Goto e Label e If cb=2+sz Goto x Goto y Label end End
 
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