fixed dependencies

vendor/gonum.org/v1/gonum/num/quat/conj.go

@@ -0,0 +1,23 @@
+// Copyright ©2018 The Gonum Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package quat
+
+// Conj returns the quaternion conjugate of q.
+func Conj(q Number) Number {
+	return Number{Real: q.Real, Imag: -q.Imag, Jmag: -q.Jmag, Kmag: -q.Kmag}
+}
+
+// Inv returns the quaternion inverse of q.
+func Inv(q Number) Number {
+	if IsInf(q) {
+		return zero
+	}
+	a := Abs(q)
+	return Scale(1/(a*a), Conj(q))
+}