Palindrome detection: Difference between revisions
→{{header|Python}}: added explanation of Twiddle Indexing
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I have no idea what this technique is called, so I'm going with "Twiddle Indexing".
<pre> Twiddle Indexing v. Negative Indexing
0 1 2 3 4 <-- index
[ a, b, c, d, e ]
~4 ~3 ~2 ~1 ~0 <-- twiddle index
0 1 2 3 4 <-- index
[ a, b, c, d, e ]
-5 -4 -3 -3 -1 <-- negative index</pre>
<lang Python>def palindromic(str):
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