diff --git a/NodeAttribute.go b/NodeAttribute.go
index 802e2c5..a20346b 100644
--- a/NodeAttribute.go
+++ b/NodeAttribute.go
@@ -9,10 +9,12 @@ import (
 	"strings"
 
 	"github.com/google/uuid"
+	"gonum.org/v1/gonum/mat"
 )
 
+// XMLMarshaler has a pointer to start in order to append multiple attributes to the xml element
 type XMLMarshaler interface {
-	MarshalXML2(e *xml.Encoder, start *xml.StartElement, Type DataType) error
+	MarshalXML(e *xml.Encoder, start *xml.StartElement) error
 }
 
 type TranslatedString struct {
@@ -21,7 +23,7 @@ type TranslatedString struct {
 	Handle  string
 }
 
-func (ts TranslatedString) MarshalXML2(e *xml.Encoder, start *xml.StartElement, Type DataType) error {
+func (ts TranslatedString) MarshalXML(e *xml.Encoder, start *xml.StartElement) error {
 	start.Attr = append(start.Attr,
 		xml.Attr{
 			Name:  xml.Name{Local: "handle"},
@@ -79,58 +81,58 @@ func (i Ivec) String() string {
 	return b.String()[1:]
 }
 
-type Vec []float32
+type Vec []float64
 
-func (v Vec) String() string {
-	b := &strings.Builder{}
-	for _, x := range v {
-		b.WriteString(" ")
-		if x == 0 {
-			x = 0
-		}
-		b.WriteString(strconv.FormatFloat(float64(x), 'G', 7, 32))
+type Mat mat.Dense
+
+func (m Mat) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+	var (
+		M = mat.Dense(m)
+		v []float64
+	)
+	rows, cols := M.Dims()
+	if rows == cols {
+		start.Name.Local = "mat" + strconv.Itoa(rows)
+	} else {
+		start.Name.Local = "mat" + strconv.Itoa(rows) + "x" + strconv.Itoa(cols)
 	}
-	return b.String()[1:]
+	e.EncodeToken(start)
+	for i := 0; i < rows; i++ {
+		v = M.RawRowView(i)
+		n := Vec(v)
+		e.Encode(n)
+	}
+	e.EncodeToken(xml.EndElement{Name: start.Name})
+	return nil
 }
 
-func (v Vec) MarshalXML2(e *xml.Encoder, start *xml.StartElement, Type DataType) error {
-	switch Type {
-	case DT_Mat2, DT_Mat3, DT_Mat3x4, DT_Mat4x3, DT_Mat4:
-		b := &strings.Builder{}
-		for i, x := range v {
-			if x < 0 {
-				x = float32(roundFloat(float64(x), 2))
-			}
-			if x == 0 {
-				x = 0
-			}
-			fmt.Fprintf(b, "% .2f", x)
-			ii, err := Type.GetColumns()
-			if err != nil {
-				return err
-			}
-			if (i % ii) == ii-1 {
-				b.WriteString(" \r\n")
-			} else {
-				b.WriteString(" ")
-			}
-		}
-		// fmt.Fprintln(os.Stderr, b.String()[1:])
-		start.Attr = append(start.Attr,
-			xml.Attr{
-				Name:  xml.Name{Local: "value"},
-				Value: b.String(),
-			},
-		)
+func (v Vec) MarshalXML(e *xml.Encoder, start xml.StartElement) error {
+	var name xml.Name
+	for i := 0; i < len(v); i++ {
+		switch i {
+		case 0:
+			name.Local = "x"
+			// start.Name = "float1"
+		case 1:
+			name.Local = "y"
+			start.Name.Local = "float2"
+		case 2:
+			name.Local = "z"
+			start.Name.Local = "float3"
+		case 3:
+			name.Local = "w"
+			start.Name.Local = "float4"
 
-	default:
-		start.Attr = append(start.Attr,
-			xml.Attr{
-				Name:  xml.Name{Local: "value"},
-				Value: v.String(),
-			},
-		)
+		default:
+			return ErrVectorTooBig
+		}
+		start.Attr = append(start.Attr, xml.Attr{
+			Name:  name,
+			Value: strconv.FormatFloat(v[i], 'f', -1, 32),
+		})
 	}
+	e.EncodeToken(start)
+	e.EncodeToken(xml.EndElement{Name: start.Name})
 	return nil
 }
 
@@ -272,9 +274,12 @@ func (na NodeAttribute) MarshalXML(e *xml.Encoder, start xml.StartElement) error
 		},
 		t,
 	)
-	if v, ok := na.Value.(XMLMarshaler); ok {
-		v.MarshalXML2(e, &start, na.Type)
-	} else {
+	v, MarshalXML2 := na.Value.(XMLMarshaler)
+	v1, MarshalXML := na.Value.(xml.Marshaler)
+	if MarshalXML2 {
+		v.MarshalXML(e, &start)
+	}
+	if !(MarshalXML || MarshalXML2) {
 		start.Attr = append(start.Attr,
 			xml.Attr{
 				Name:  xml.Name{Local: "value"},
@@ -284,6 +289,11 @@ func (na NodeAttribute) MarshalXML(e *xml.Encoder, start xml.StartElement) error
 	}
 
 	e.EncodeToken(start)
+
+	if MarshalXML {
+		e.EncodeElement(v1, xml.StartElement{Name: xml.Name{Local: na.Type.String()}})
+	}
+
 	e.EncodeToken(xml.EndElement{
 		Name: start.Name,
 	})
@@ -300,16 +310,18 @@ func (na NodeAttribute) String() string {
 		return fmt.Sprint(na.Value)
 
 	case DT_Double:
+		v := na.Value.(float64)
 		if na.Value == 0 {
 			na.Value = 0
 		}
-		return fmt.Sprintf("%.15G", na.Value)
+		return strconv.FormatFloat(v, 'f', -1, 64)
 
 	case DT_Float:
+		v := na.Value.(float32)
 		if na.Value == 0 {
 			na.Value = 0
 		}
-		return fmt.Sprintf("%.7G", na.Value)
+		return strconv.FormatFloat(float64(v), 'f', -1, 32)
 
 	default:
 		return fmt.Sprint(na.Value)
diff --git a/binutils.go b/binutils.go
index 231d8e5..ffdcb97 100644
--- a/binutils.go
+++ b/binutils.go
@@ -13,6 +13,7 @@ import (
 	"github.com/go-kit/kit/log"
 	"github.com/google/uuid"
 	"github.com/pierrec/lz4/v4"
+	"gonum.org/v1/gonum/mat"
 )
 
 func reverse(nums []byte) {
@@ -287,7 +288,7 @@ func ReadAttribute(r io.ReadSeeker, name string, DT DataType, length uint, l log
 			if err != nil {
 				return attr, err
 			}
-			vec[i] = v
+			vec[i] = float64(v)
 		}
 		attr.Value = vec
 
@@ -318,10 +319,10 @@ func ReadAttribute(r io.ReadSeeker, name string, DT DataType, length uint, l log
 				if err != nil {
 					return attr, err
 				}
-				vec[ro*col+c] = v
+				vec[ro*col+c] = float64(v)
 			}
 		}
-		attr.Value = vec
+		attr.Value = (*Mat)(mat.NewDense(row, col, []float64(vec)))
 
 		l.Log("member", name, "read", length, "start position", pos, "value", attr.Value)
 		pos += int64(length)
diff --git a/const.go b/const.go
index ab327ef..65a4125 100644
--- a/const.go
+++ b/const.go
@@ -1,5 +1,7 @@
 package lslib
 
+import "errors"
+
 type FileVersion uint32
 
 const (
@@ -45,3 +47,7 @@ const (
 	DefaultCompression CompressionLevel = 0x20
 	MaxCompression     CompressionLevel = 0x40
 )
+
+var (
+	ErrVectorTooBig = errors.New("the vector is too big cannot marshal to an xml element")
+)
diff --git a/go.mod b/go.mod
index f482486..4a37dd3 100644
--- a/go.mod
+++ b/go.mod
@@ -9,4 +9,5 @@ require (
 	github.com/google/uuid v1.1.2
 	github.com/kr/pretty v0.2.1
 	github.com/pierrec/lz4/v4 v4.1.1
+	gonum.org/v1/gonum v0.8.1
 )
diff --git a/go.sum b/go.sum
index c95e2cd..ab05f63 100644
--- a/go.sum
+++ b/go.sum
@@ -1,11 +1,14 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
 github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
 github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
 github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
 github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
+github.com/ajstarks/svgo v0.0.0-20180226025133-644b8db467af/go.mod h1:K08gAheRH3/J6wwsYMMT4xOr94bZjxIelGM0+d/wbFw=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
@@ -48,10 +51,12 @@ github.com/envoyproxy/go-control-plane v0.6.9/go.mod h1:SBwIajubJHhxtWwsL9s8ss4s
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/fogleman/gg v1.2.1-0.20190220221249-0403632d5b90/go.mod h1:R/bRT+9gY/C5z7JzPU0zXsXHKM4/ayA+zqcVNZzPa1k=
 github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
 github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
 github.com/go-kit/kit v0.10.0 h1:dXFJfIHVvUcpSgDOV+Ne6t7jXri8Tfv2uOLHUZ2XNuo=
@@ -61,11 +66,13 @@ github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V
 github.com/go-logfmt/logfmt v0.5.0 h1:TrB8swr/68K7m9CcGut2g3UOihhbcbiMAYiuTXdEih4=
 github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
 github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
+github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
+github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
@@ -123,6 +130,7 @@ github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/u
 github.com/json-iterator/go v1.1.8/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
+github.com/jung-kurt/gofpdf v1.0.3-0.20190309125859-24315acbbda5/go.mod h1:7Id9E/uU8ce6rXgefFLlgrJj/GYY22cpxn+r32jIOes=
 github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
@@ -250,13 +258,25 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
+golang.org/x/exp v0.0.0-20180321215751-8460e604b9de/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20180807140117-3d87b88a115f/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190125153040-c74c464bbbf2 h1:y102fOLFqhV41b+4GPiJoa0k/x+pJcEi2/HB1Y5T6fU=
+golang.org/x/exp v0.0.0-20190125153040-c74c464bbbf2/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
+golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3 h1:n9HxLrNxWWtEb1cA950nuEEj3QnKbtsCJ6KjcgisNUs=
+golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3/go.mod h1:NOZ3BPKG0ec/BKJQgnvsSFpcKLM5xXVWnvZS97DWHgE=
+golang.org/x/image v0.0.0-20180708004352-c73c2afc3b81/go.mod h1:ux5Hcp/YLpHSI86hEcLt0YII63i6oz57MZXIpbrjZUs=
+golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
+golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
 golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o=
 golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc=
+golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY=
 golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -291,6 +311,7 @@ golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -302,20 +323,29 @@ golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
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@@ -351,5 +381,6 @@ honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWh
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