mat: make Diagonal satisfy Symmetric
@@ -25,8 +25,11 @@ var (
// has non-zero terms on the diagonal.
type Diagonal interface {
Matrix
- // Diag returns the number of rows/columns in the matrix
+ // Diag and Symmetric return the number of rows/columns in
+ // the matrix. Both methods are included to allow diagonal
+ // matrices to be used in functions taking symmetric inputs.
Diag() int
+ Symmetric() int
}
// MutableDiagonal is a Diagonal matrix whose elements can be set.
