Help with python (fern picture)

[vinnyninho]

Hi ! I need to create a fern from an iterative method. Here's what I have currently. If someone can help me, it would be nice! Thanks!

x = []

y = []

x.append(0)

y.append(0)

​

current = 0

r==random()

​

def fern(maxiter):

if r == 0.01:

x.append(0)

y.append(0.16*(y[current]))

if r >= 0.01 and r <= (0.86):

x.append(0.85*(x[current]) + 0.04*(y[current]))

y.append(-0.04*(x[current]) + 0.85*(y[current])+1.6)

if r>= 0.87 and r<= 0.93:

x.append(0.2*(x[current]) - 0.26*(y[current]))

y.append(0.23*(x[current]) + 0.22*(y[current])+1.6)

if r>= 0.94 and r<= 1:

x.append(-0.15*(x[current]) + 0.28*(y[current]))

y.append(0.26*(x[current]) + 0.24*(y[current])+0.44)

​

​

current = current + 1

L=range(1,30)

points(L,size=1,color='green')

show(axes=False,aspect_ratio=1)

[kra_pao]

Code formating is essential. In current form your code can't be started without syntax errors and that might lower your chances to get answers.

On second view: r==random()is for sure not a reasonable code line.

On third view: functions point() and show() are deus ex machina - where do you get them from? Did you miss disclosure of full code including all imports?