From e774bf4be4b2ded5838d383d09b78b043c0c4e33 Mon Sep 17 00:00:00 2001
From: Alexander Karatarakis <alex@karatarakis.com>
Date: Wed, 21 Nov 2012 17:32:48 +0200
Subject: [PATCH] Add new abstract class: SquareMatrix

Signed-off-by: Alexander Karatarakis <alex@karatarakis.com>
---
 .../LinearAlgebra/Generic/SquareMatrix.cs     | 39 +++++++++++++++++++
 src/Numerics/Numerics.csproj                  |  1 +
 2 files changed, 40 insertions(+)
 create mode 100644 src/Numerics/LinearAlgebra/Generic/SquareMatrix.cs

diff --git a/src/Numerics/LinearAlgebra/Generic/SquareMatrix.cs b/src/Numerics/LinearAlgebra/Generic/SquareMatrix.cs
new file mode 100644
index 00000000..ca4ba3e2
--- /dev/null
+++ b/src/Numerics/LinearAlgebra/Generic/SquareMatrix.cs
@@ -0,0 +1,39 @@
+namespace MathNet.Numerics.LinearAlgebra.Generic
+{
+    using System;
+
+    using MathNet.Numerics.LinearAlgebra.Storage;
+
+    using Properties;
+
+    /// <summary>
+    /// Abstract class for square matrices. 
+    /// </summary>
+    /// <typeparam name="T">Supported data types are <c>double</c>, <c>single</c>, <see cref="Complex"/>, and <see cref="Complex32"/>.</typeparam>
+    [Serializable]
+    public abstract class SquareMatrix<T> : Matrix<T>
+         where T : struct, IEquatable<T>, IFormattable
+    {
+        /// <summary>
+        ///   Number of rows or columns.
+        /// </summary>
+        protected readonly int Order;
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="SquareMatrix{T}"/> class. 
+        /// </summary>
+        /// <exception cref="ArgumentException">
+        /// If the matrix is not square.
+        /// </exception>
+        protected SquareMatrix(MatrixStorage<T> storage)
+            : base(storage)
+        {
+            if (storage.RowCount != storage.ColumnCount)
+            {
+                throw new ArgumentException(Resources.ArgumentMatrixSquare);
+            }
+
+            Order = storage.RowCount;
+        }
+    }
+}
diff --git a/src/Numerics/Numerics.csproj b/src/Numerics/Numerics.csproj
index 12d2ad78..64c39dbd 100644
--- a/src/Numerics/Numerics.csproj
+++ b/src/Numerics/Numerics.csproj
@@ -140,6 +140,7 @@
     <Compile Include="Distributions\Multivariate\InverseWishart.cs" />
     <Compile Include="Distributions\Multivariate\MatrixNormal.cs" />
     <Compile Include="Distributions\Multivariate\Wishart.cs" />
+    <Compile Include="LinearAlgebra\Generic\SquareMatrix.cs" />
     <Compile Include="LinearAlgebra\Storage\DenseColumnMajorSymmetricMatrixStorage.cs" />
     <Compile Include="LinearAlgebra\Storage\DenseVectorStorage.cs" />
     <Compile Include="LinearAlgebra\Storage\Indexers\IStorageIndexer.cs" />