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diff/fd: fix build

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This commit is contained in:
kortschak
2017-07-31 10:57:20 +09:30
committed by Dan Kortschak
parent f99e3efb09
commit cd23ab5b82
2 changed files with 6 additions and 6 deletions
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10
diff/fd/simplefunctions_test.go
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@@ -57,20 +57,20 @@ func (l LinearFunc) Hess(dst mat.MutableSymmetric, x []float64) {
// QuadFunc is a quadratic function returning 0.5*x'*a*x + b*x + c.
type QuadFunc struct {
a *mat.SymDense
b *mat.Vector
b *mat.VecDense
c float64
}
func (q QuadFunc) Func(x []float64) float64 {
v := mat.NewVector(len(x), x)
var tmp mat.Vector
v := mat.NewVecDense(len(x), x)
var tmp mat.VecDense
tmp.MulVec(q.a, v)
return 0.5*mat.Dot(&tmp, v) + mat.Dot(q.b, v) + q.c
}
func (q QuadFunc) Grad(grad, x []float64) {
var tmp mat.Vector
v := mat.NewVector(len(x), x)
var tmp mat.VecDense
v := mat.NewVecDense(len(x), x)
tmp.MulVec(q.a, v)
for i := range grad {
grad[i] = tmp.At(i, 0) + q.b.At(i, 0)