Posts: 3
Threads: 2
Joined: Feb 2017
I am a newbie to python and using python 3.
I wish to learn patterns and printing e.g stars etc. I want to start basic patterns first
eg.
*
**
***
****
Is there a website or document like pdf that will teach me this and perhaps answers to check against when i go wrong?
Posts: 1,150
Threads: 42
Joined: Sep 2016
Hello,
I am not familiar with any document (nor did I search, really..). But if you look into "ASCII art" you might find a lot of resources for what you are after.
As far as Python goes, "print" statement will be your best friend in drawing patterns.
Posts: 2,953
Threads: 48
Joined: Sep 2016
Feb-21-2017, 08:39 AM
(This post was last modified: Feb-21-2017, 08:39 AM by wavic.)
Simple example:
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In [14]: for i in range(1, 30, 2):
...: print('*' * i)
...:
*
***
*****
*******
*********
***********
*************
***************
*****************
*******************
*********************
***********************
*************************
***************************
|
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In [15]: print('oh, yes! ' * 10)
oh, yes! oh, yes! oh, yes! oh, yes! oh, yes! oh, yes! oh, yes! oh, yes! oh, yes! oh, yes!
|
Posts: 4,220
Threads: 97
Joined: Sep 2016
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numbers = {'***': 128, '** ': 64, '* *': 32, '* ': 16, ' **': 8, ' * ': 4, ' *': 2, ' ': 1}
def eca(rule, n = 18, start = '*'):
rule_bin = reversed(bin(rule)[2:])
last = start
for generation in range(n):
print(last)
last = ' {} '.format(last)
next = ''
for index in range(len(last) - 2):
if rule & numbers[last[index:index + 3]]:
next += '*'
else:
next += ' '
last = next
eca(18)
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Posts: 2,953
Threads: 48
Joined: Sep 2016
Posts: 4,220
Threads: 97
Joined: Sep 2016
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import random
numbers = {'***': 128, '** ': 64, '* *': 32, '* ': 16, ' **': 8, ' * ': 4, ' *': 2, ' ': 1}
def box(rule, n = 23, width = 79):
last = ''
for cell in range(width):
if random.random() < 0.5:
last += '*'
else:
last += ' '
for generation in range(n):
print(last)
last = ' {} '.format(last)
next = ''
for index in range(len(last) - 2):
if rule & numbers[last[index:index + 3]]:
next += '*'
else:
next += ' '
last = next
box(30)
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