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MathGroup Archive 2005

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Re: Types in Mathematica


Kristjan Kannike wrote:

> On Fri, 18 Nov 2005, John Doty wrote:
> 
> [snip]
> 
> 
>>Try defining an "argument" that operates on its "function" in any other
>>language. Of course few Mathematica programmers would do anything this
> 
> 
> But is it not just operator overloading? In Python, for example, adding
> numbers with + gives a number, but "adding" two lists with + concatenates
> them. 

Misleading, because, in the following...

> Of course, in a Python class one can define it only for given
> methods and in Mathematica for any function. But the essence is the same
> and quite analogous.

.... the second sentence contradicts the first. The mechanisms of Python 
are essentially procedural and therefore require "given methods". 
Profoundly and fundamentally different from Mathematica.

-jpd


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