Rustom Mody wrote: > Its when we have variables that are assigned in multiple places that > we start seeing mathematical abominations like > x = x+1
That's not a mathematical abomination. It's a perfectly reasonable mathematical equation, one with no solutions since the line f(x) = x and the line f(x) = x+1 are parallel. But what does this have to do with programming? Programming *is not* mathematics, and x = x+1 has a different meaning in programming than in mathematics. Perhaps it would help if we wrote it using mathematical notation? Using [x] for subscripts: x[n+1] = x[n] + 1 we have a perfectly good mathematical recursive definition. All it needs is an initial value x[0] and we're good to go. -- Steven -- https://mail.python.org/mailman/listinfo/python-list
