The MOSEK Python optimizer API manual Version 7.0 (Revision 141)

222 APPENDIX A. API REFERENCE
A.2.31
Task.getbaraidxij()
i,j = Task.getbaraidxij(idx)
Obtains information about an element barA.
Arguments
i : int
Row index of the element at position idx.
idx : long
Position of the element in the vectorized form.
j : int
Column index of the element at position idx.
Description:
Obtains information about an element in Ā. Since Ā is a sparse matrix of symmetric matrixes
only the nonzero elements in Ā are stored in order to save space. Now Ā is stored vectorized
form i.e. as one long vector. This function makes it possible to obtain information such as the
row index and the column index of a particular element of the vectorized form of Ā.
Please note that if one element of Ā is inputted multiple times then it may be stored several
times in vectorized form. In that case the element with the highest index is the one that is used.
A.2.32
Task.getbaraidxinfo()
num = Task.getbaraidxinfo(idx)
Obtains the number terms in the weighted sum that forms a particular element in barA.
Arguments
idx : long
The internal position of the element that should be obtained information for.
num : long
Number of terms in the weighted sum that forms the specified element in Ā.
Description:
Each nonzero element in Āij is formed as a weighted sum of symmtric matrixes. Using this function
the number terms in the weigthted sum can be obtained. See description of Task.appendsparsesymmat
for details about the weighted sum.