On 27 juin, 23:41, Kurda Yon <[EMAIL PROTECTED]> wrote: > Hi, > > I just started to learn Python. I understood how one can create a > class and define a method related with that class. According to my > understanding every call of a methods is related with a specific > object. For example, we have a method "length", than we call this > method as the following "x.length()" or "y.length()" or "z.length()", > where z, y, and z are objects of the class. > > I am wandering if it is possible to create a method which is related > not with a single object (as in the previous example) but with a pare > of objects. For example, I want to have a class for vectors, and I > want to have a methods which calculate a dot product of two vectors. > One of the possibilities is to use __mul__ and that I calculated dot > product of "x" and "y" just as "x * y". However, I am wandering if I > can declare a method in a way that allows me to calculate dot product > as "dot(x,y)".
No problem. This is actually called a function. It has the same syntax as a method, except that: 1/ it's defined outside a class 2/ it doesn't take the instance as first argument. Here's a simple example applied to multiplication: def multiply(x, y): return x * y HTH. -- http://mail.python.org/mailman/listinfo/python-list
