/// <summary>3次元畳み込み</summary>
        public static Tensor Convolution3D(Tensor x, Tensor w, int stride)
        {
            Functions.Connection3D.Convolution function =
                new Functions.Connection3D.Convolution(x.Shape, w.Shape, stride);

            Tensor y = new Tensor(function.OutShape);

            function.Execute(new Tensor[] { x, w }, new Tensor[] { y });

            return(y);
        }