/
mat_test.go
99 lines (68 loc) · 2.08 KB
/
mat_test.go
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package linalg
import (
"github.com/dane-unltd/linalg/mat"
"testing"
)
func TestMMul(t *testing.T) {
mat.Register(cblasops{})
A := mat.NewFromArray([]float64{1, 2, 3, 4}, false, 2, 2)
B := mat.NewFromArray([]float64{1, 2, 3, 4}, false, 2, 2)
res := &mat.Dense{}
resCorrect := mat.NewFromArray([]float64{7, 10, 15, 22}, false, 2, 2)
res.MMul(A, B)
temp := mat.Dense{}
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
resCorrect = mat.NewFromArray([]float64{3, 6, 4, 8}, false, 2, 2)
Asub := A.View(0, 0, 2, 1)
Bsub := B.View(0, 1, 2, 1).TrView()
res.MMul(Asub, Bsub)
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
Bsub = B.TrView().View(1, 0, 1, 2)
res.MMul(Asub, Bsub)
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
//View as receiver:
res = mat.NewFromArray([]float64{1, 2, 3, 4}, false, 2, 2)
dst := res.View(0, 0, 2, 1)
resCorrect = mat.NewFromArray([]float64{7, 10, 3, 4}, false, 2, 2)
dst.MMul(B, Asub)
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
}
func TestAdd(t *testing.T) {
mat.Register(cblasops{})
A := mat.NewFromArray([]float64{1, 2, 3, 4}, false, 2, 2)
B := mat.NewFromArray([]float64{1, 2, 3, 4}, false, 2, 2)
res := &mat.Dense{}
resCorrect := mat.NewFromArray([]float64{2, 4, 6, 8}, false, 2, 2)
res.Copy(A).Add(B)
temp := mat.Dense{}
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
resCorrect = mat.NewFromArray([]float64{2, 5}, false, 2, 1)
Asub := A.View(0, 0, 2, 1)
Bsub := B.View(0, 0, 1, 2).TrView()
res.Copy(Asub).Add(Bsub)
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
Bsub = B.TrView().View(0, 0, 2, 1)
res.Copy(Asub).Add(Bsub)
temp.Copy(res).Sub(resCorrect)
if temp.Vec(nil).Nrm2Sq() > 0.01 {
t.Error("wrong result", res, resCorrect)
}
}