David Virebayre schrieb: > 2010/10/12 Gregory Crosswhite <gcr...@phys.washington.edu>: > >> Also, I don't see why one would prefer >>> over the standard function >> composition operator, ".". > > With "." you have to read right-to-left to follow data's path. > > For me that reading order isn't natural, and I imagine it is so for > most people which don't have a mathematical background. > > Combined with >>= / >> you have multiple reading direction in the same > expression, as in > > expression ( c . b . a ) `liftM` a1 >>= a2 >>= a3 > reading order 6 5 4 1 2 3
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