functional.py - def isPositive(x return x > 0 lst = print...

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def isPositive (x): return x > 0 lst = [-1, 2, -3, 4, -5, 6] print "the list :", lst print "normal filter :", print filter(isPositive, lst) print "lambda filter :", print filter(lambda x : x < 0, lst) def square (x): return x*x print "normal map :", print map(square, lst) print "lambda map :", print map(lambda x : x*x + 1, lst) def add (x, y): return x + y print "normal reduce :", print reduce(add, lst) print "lambda reduce :", print reduce(lambda x, y : x + y + 1, lst) def naiveDot (a, b): dot = 0 for i in range(len(a)): dot += a[i]*b[i] return dot
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