a couple of things I don't understand wrt lists
Terry Jan Reedy
tjreedy at udel.edu
Tue Apr 16 13:19:55 EDT 2013
On 4/16/2013 11:37 AM, aaB wrote:
> I represent the CA's rule with a list of integers, of value 1 or 0.
> Here is the function I use to generate the list:
>
> def get_rule(rulenum):
> rule = []
> while rulenum > 0:
> rule.append(rulenume % 2)
> rulenum /= 2
divmod(rulenum) will return both the quotient and remainder at one time
> while len(rule) < 8:
> rule.append(0)
> rule.reverse()
> return rule
In versions of Python with builtin bin(), you could write
def get_rule(rulenum):
b = bin(rulenum)[2:] #
return [0]*(8-len(b)) + [int(i) for i in b]
To know Python decently well, you should understand all of that syntax.
> rule = getrule(int(8))
> print rule
> [0, 0, 0, 0, 1, 0, 0, 0]
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