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mat: reduce method load on SymBandDens

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This commit is contained in:
kortschak
2017-07-09 13:43:04 +09:30
committed by Dan Kortschak
parent 74061016e3
commit c180e002c4
1 changed files with 2 additions and 17 deletions
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19
mat/symband.go
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@@ -23,21 +23,11 @@ type SymBandDense struct {
mat blas64.SymmetricBand
}
// SymBanded represents a symmetric banded matrix (where the element at {i, j} equals
// the element at {j, i}). Only elements within k of the diagonal are non-zero. Symmetric
// matrices are always square.
type SymBanded interface {
Symmetric
// HalfBandwidth returns the half bandwidth value for the matrix.
// The total bandwidth of the matrix is 2*k+1.
HalfBandwidth() (k int)
}
// MutableSymBanded is a symmetric band matrix interface type that allows elements
// to be altered.
type MutableSymBanded interface {
SymBanded
Symmetric
Bandwidth() (kl, ku int)
SetSymBand(i, j int, v float64)
}
@@ -118,11 +108,6 @@ func (s *SymBandDense) Bandwidth() (kl, ku int) {
return s.mat.K, s.mat.K
}
// HalfBandwidth returns the bandwidth of the matrix.
func (s *SymBandDense) HalfBandwidth() (k int) {
return s.mat.K
}
// T implements the Matrix interface. Symmetric matrices, by definition, are
// equal to their transpose, and this is a no-op.
func (s *SymBandDense) T() Matrix {