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python Programming Glossary: ayImpossible lookbehind with a backreference http://stackoverflow.com/questions/10279055/impossible-lookbehind-with-a-backreference to have a different opinion though import re test 'xAAAAAyBBBBz' print re.sub r' . 1 ' r' g 0 ' test Result x AAAA A y.. groups in assertions correctly import regex test 'xAAAAAyBBBBz' print regex.sub r' . 1 ' r' g 0 ' test ## xAAAAAyBBBBz.. print regex.sub r' . 1 ' r' g 0 ' test ## xAAAAAyBBBBz print regex.sub r' . . 1 ' r' g 0 ' test ## xA AAA Ay BBB..
Checking to see if 3 points are on the same line http://stackoverflow.com/questions/3813681/checking-to-see-if-3-points-are-on-the-same-line check if the area of the ABC triangle is 0 Ax By Cy Bx Cy Ay Cx Ay By 2 Of course you don't actually need to divide by 2... if the area of the ABC triangle is 0 Ax By Cy Bx Cy Ay Cx Ay By 2 Of course you don't actually need to divide by 2. share..
Finding combination in Python without importing itertools http://stackoverflow.com/questions/3902009/finding-combination-in-python-without-importing-itertools the source def product args kwds # product 'ABCD' 'xy' Ax Ay Bx By Cx Cy Dx Dy # product range 2 repeat 3 000 001 010 011..
How to correlate two time series with gaps and different time bases? http://stackoverflow.com/questions/5130808/how-to-correlate-two-time-series-with-gaps-and-different-time-bases A B Ax maps to By up down Az maps to Bx left right and Ay maps to Bz front back . My initial goal is to correlate shock..
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