Question

PYTHON

Fractal Drawing

We will draw a recursively defined picture in this program.

Create a function def fractal(length, spaces). This function will print out a certain number of stars * and spaces.

• If length is 1 print out the number of spaces given followed by 1 star.
• If the length is greater than one do the following:
  • Print the fractal pattern with half the length and the same number of spaces.
  • Print the number of spaces given followed by length stars.
  • Print the fractal pattern with half the length and spaces+(length//2) spaces in front of it.

Once your function works, prompt the user for an integer x and execute fractal(x,0). You will not receive credit if your function is not recursive.

If the input is not an integer > 0, ask again. Your program should exit after successfully drawing a Fractal.

You may create any additional functions you want to complete this assignment. Only the fractal function must be recursive.

Example 1

Fractal Generator
Enter an integer > 0:
Cats
Enter an integer > 0:
3
*
***
 *

Example 2

Fractal Generator
Enter an integer > 0:
8
*
**
 *
****
  *
  **
   *
********
    *
    **
     *
    ****
      *
      **
       *

Answer 1

code:

def fractal(length, spaces):

if length == 1:

print(spaces * " ", '*')

else:

fractal(int(length / 2), spaces) #Recursive call

print(spaces * " ", length * "*")

fractal(int(length / 2),spaces + int (length / 2)) #Recursive call

def getinput():

x = input("Enter an integer > 0 :")

if x.isdigit() :

return int(x)

if _name_ == "_main_":

x = getinput() #Function to get input

fractal(x, 0)

else:

return getinput()