muEC::COMP::ListCompo( 3 );
muEC::COMP::ListCompo( 2, allowzeros, lg=3 );
muEC::COMP::ListCompo( 5, maxouter=[4,3], allowzeros, lg<=4 );
muEC::COMP::ListCompo( 20, lg<=10, nb );
muEC::COMP::ListCompo – list of compositions of a given weight
The muEC::COMP::ListCompo function gives all compositions of n. A composition of n is a list of positive integers, called parts, with sum n.
Call:
muEC::COMP::ListCompo(n, <Options>)
Parameters:
|
n: |
any non negative integer |
Options:
|
lg = l | lg <= l: |
number (or maximal number) of parts of each composition |
|
allowzeros: |
compositions may include zeros |
|
nb: |
only counts objects |
|
maxouter = p: |
outermost possible shape of the diagram |
Return Value:
a list of compositions or their number
Related Functions:
muEC::COMP::ListCompoFatter, muEC::COMP::ListCompoFiner, muEC::TYP::IsCompo
Details:
The muEC::COMP::ListCompo function gives all compositions of n. A composition of n is a list of positive integers, called parts, with sum n.
When called with one argument, say n, the function returns the list of all compositions of n.
Given a composition comp, _plus(op(comp)) gives its weight.
Use the syntax hold(identifier), instead of identifier, if one of the identifiers above is already defined.
muEC::COMP::ListCompo( 3 );
muEC::COMP::ListCompo( 2, allowzeros, lg=3 );
muEC::COMP::ListCompo( 5, maxouter=[4,3], allowzeros, lg<=4 );
muEC::COMP::ListCompo( 20, lg<=10, nb );