Puoi aprire il codice e modificarlo
HELP

aX = -1; bX = 3; aY = -2; bY = 2
Dx = 1; Dy = 1

titolo = "z = x + y i      F(z) = z^2 + z + 1"
...
// (x + y i)^2+ (x + y i) + 1 = x^2 + x - y^2 + 1 + i (2 x y + y)

C0="red"; C1="blue"
n=200; H = 2*Math.PI/n
for(i=0;i<=n; i=i+1) { t = H*i; L0x[i]= Math.cos(t); L0y[i]= Math.sin(t)  }
for(i=0;i<=n; i=i+1) { t = H*i; L1x[i]= L0x[i]*L0x[i]+L0x[i]-L0y[i]*L0y[i]+1; L1y[i]= 2*L0x[i]*L0y[i]+L0y[i] }
...
T0=["A", -0.55,0.55]; T1=["F(A)", 2.5,0.65]
...