On May 22, 10:30 am, Nick Craig-Wood <[EMAIL PROTECTED]> wrote: > Dave Parker <[EMAIL PROTECTED]> wrote: > > But after getting input from children and teachers, etc, it started > > feeling right. > > > For example, consider the two statements: > > > x = 8 > > x = 10 > > > The reaction from most math teachers (and kids) was "one of those is > > wrong because x can't equal 2 different things at the same time". > > This is a common feature in functional languages... > > Eg > > Erlang (BEAM) emulator version 5.6.2 [source] [smp:2] > [async-threads:0] [kernel-poll:false] > > Eshell V5.6.2 (abort with ^G) > 1> X = 8. > 8 > 2> X = 10. > ** exception error: no match of right hand side value 10 > 3> > > That error message is the erlang interpreter saying "Hey I know X is > 8, and you've said it is 10 - that can't be right", which is pretty > much what math teachers say too...
Are you saying that erlang treats 1> as an assignment, yet treats 2> as a comparison? That's inconsistent. No wonder nobody uses erlang. Why isn't erlang smart, like Python, and avoid such confusion? IDLE 1.2 >>> X = 2**3 # assignment >>> X == 8 # comparison True >>> X == 10 False >>> > > -- > Nick Craig-Wood <[EMAIL PROTECTED]> --http://www.craig-wood.com/nick -- http://mail.python.org/mailman/listinfo/python-list
