MatrixView

The matrix storages koblas itself defines: DenseMatrix and SparseMatrix, and nothing else ever.

Sealed for one reason — serialization. A snapshot has to decode back into the concrete storage it was written from, and a closed set is what lets kotlinx.serialization do that without a consumer registering anything. It is also why both storages live in this package: a sealed subtype must be declared alongside its root.

Take MatrixLike instead unless you genuinely need the closed set. This exists so serialization and exhaustive dispatch work, not to restrict what callers can pass.

get is O(1) on the dense storage and a search within a column on the sparse one, so an algorithm that sweeps every entry through get is the wrong shape for a sparse operand — walk the stored entries instead.

Inheritors