From 4f76d37dff79d69b525a5bf5fc28ffb9f587a02d Mon Sep 17 00:00:00 2001
From: Nigel Tao <nigeltao@golang.org>
Date: Thu, 26 Feb 2015 17:08:33 +1100
Subject: [PATCH] math/f32, math/f64: new packages for vector and matrix types.

Change-Id: I937d16429d7321360d0b9f3a811f8d3d719e9bff
Reviewed-on: https://go-review.googlesource.com/6076
Reviewed-by: David Crawshaw <crawshaw@golang.org>
Reviewed-by: Stephen Gutekanst <stephen.gutekanst@gmail.com>
---
 math/f32/f32.go | 25 +++++++++++++++++++++++++
 math/f64/f64.go | 25 +++++++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100644 math/f32/f32.go
 create mode 100644 math/f64/f64.go

diff --git a/math/f32/f32.go b/math/f32/f32.go
new file mode 100644
index 0000000..7dcc9fc
--- /dev/null
+++ b/math/f32/f32.go
@@ -0,0 +1,25 @@
+// Copyright 2015 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 f32 implements float32 vector and matrix types.
+package f32 // import "golang.org/x/image/math/f32"
+
+// Vec2 is a 2-element vector.
+type Vec2 [2]float32
+
+// Vec3 is a 3-element vector.
+type Vec3 [3]float32
+
+// Vec4 is a 4-element vector.
+type Vec4 [4]float32
+
+// Mat3 is a 3x3 matrix in row major order.
+//
+// m[3*r + c] is the element in the r'th row and c'th column.
+type Mat3 [9]float32
+
+// Mat4 is a 4x4 matrix in row major order.
+//
+// m[4*r + c] is the element in the r'th row and c'th column.
+type Mat4 [16]float32
diff --git a/math/f64/f64.go b/math/f64/f64.go
new file mode 100644
index 0000000..8fd32ea
--- /dev/null
+++ b/math/f64/f64.go
@@ -0,0 +1,25 @@
+// Copyright 2015 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 f64 implements float64 vector and matrix types.
+package f64 // import "golang.org/x/image/math/f64"
+
+// Vec2 is a 2-element vector.
+type Vec2 [2]float64
+
+// Vec3 is a 3-element vector.
+type Vec3 [3]float64
+
+// Vec4 is a 4-element vector.
+type Vec4 [4]float64
+
+// Mat3 is a 3x3 matrix in row major order.
+//
+// m[3*r + c] is the element in the r'th row and c'th column.
+type Mat3 [9]float64
+
+// Mat4 is a 4x4 matrix in row major order.
+//
+// m[4*r + c] is the element in the r'th row and c'th column.
+type Mat4 [16]float64