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Question: Extracting Data out of own type

Question:Extracting Data out of own type

hanswurst 368 Maple 10
define type
March 30 2011
0

Hi there,

 

I have defined an own type MyType wich is internally just a list ['MyType', A, B] with let's say two lists A,B and the symbol 'MyType' as first element (to identify the type).

Now, if I define

X := MyType('MyType', A, B);

is there a possibility to extract A out of X by something like

X[2]

or even better X[1] (thus skipping the first one)? The only thing I know is op(2, X).
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