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// Copyright ©2011-2012 Dan Kortschak <dan.kortschak@adelaide.edu.au>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
// Packages providing basic linear algebra operations
package matrix
const (
Cols = true
Rows = !Cols
Inf = int(^uint(0) >> 1)
Fro = -Inf - 1
)
var (
Precision int = 8
Format byte = 'e'
Pad map[byte]int = map[byte]int{'e': 6, 'f': 2, 'g': 6, 'E': 6, 'F': 2, 'G': 6}
)
type FilterFunc func(r, c int, v float64) bool
type ApplyFunc func(r, c int, v float64) float64
type Matrix interface {
Copy() Matrix
Dims() (int, int)
Set(r, c int, v float64) error
At(r, c int) (float64, error)
Norm() float64
T() Matrix
Det() float64
Add(b Matrix) Matrix
Sub(b Matrix) Matrix
MulElem(b Matrix) Matrix
Equals(b Matrix) bool
EqualsApprox(b Matrix, error float64) bool
Scalar(f float64) Matrix
Sum() (s float64)
Dot(b Matrix) Matrix
Inner(b Matrix) Matrix
Stack(b Matrix) Matrix
Augment(b Matrix) Matrix
Filter(f FilterFunc) Matrix
}
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