Hello, I am a little bit stuck in understanding your implementation of incidence matrices.
Correct me if I am wrong, but it seems to me that an incidence matrix, say {0,1} {0,2}, is internally stored as something alike a 2x3 matrix of the form
1 1 0
1 0 1
where each row corresponds to a set, each columns corresponds to a column, and boolean entries say whether a set contains an element of not.
Say the incidence matrix is called m, then I can get the number of colums and rows through m.cols() and m.rows(). But how can I get the boolean entries?
(Of course I tried the trivial method bool b = m[j] or b = m(i)(j). I hope the answer isn't written at some obvious place in the library, where I missed it.)
best regards and thanks in advance, Yue.