Erlang way of calling functions

Γιάννης Γεωργίου <[email protected]>
Newsgroups gmane.comp.lang.erlang.general
Message-ID <[email protected]>
Hi,

I 'm new to erlang and I notice this way of calling functions..

{ok, Returndata} = module:function(Inputdata).

Which is the purpose of ok atom? How I can use it?

Thanks for your time.
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