//mandelbrot I m(I x){I k=0;N(x,F r=-1.5+i*2./x;N(x,F s=-1+…

Twetch ·

//mandelbrot
I m(I x){I k=0;N(x,F r=-1.5+i*2./x;N(x,F s=-1+i*2./x,p,q,t,u;p=q=0;I m=50;W(m*(4>(t=p*p)+(u=q*q)))--m,q=s+2*p*q,p=r+t-u;k+=!m))R k;}