fixed dependencies

vendor/gonum.org/v1/gonum/internal/cmplx64/conj.go

@@ -0,0 +1,12 @@
+// Copyright 2010 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.
+
+// Copyright ©2017 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.
+
+package cmplx64
+
+// Conj returns the complex conjugate of x.
+func Conj(x complex64) complex64 { return complex(real(x), -imag(x)) }