com.eignex.koblas/SparseMatrix/Companion Companion object Companion(source)Factories for CSC matrices. Functions ofColumns fun ofColumns(rows: Int, cols: Int, columns: List<List<Pair<Int, Double>>>): SparseMatrix(source)Build a CSC matrix from column-major (row, value) entries: columns[j] lists column j's nonzeros. Entries within a column are sorted by row; duplicates are summed.