// <copyright file="MatrixExtensions.cs" company="Math.NET">
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// Math.NET Numerics, part of the Math.NET Project
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// http://numerics.mathdotnet.com
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// http://github.com/mathnet/mathnet-numerics
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//
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// Copyright (c) 2009-2015 Math.NET
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the "Software"), to deal in the Software without
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// restriction, including without limitation the rights to use,
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// copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following
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// conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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// OTHER DEALINGS IN THE SOFTWARE.
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// </copyright>
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namespace IStation.Numerics.LinearAlgebra
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{
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using Complex64 = System.Numerics.Complex;
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public static class MatrixExtensions
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{
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/// <summary>
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/// Converts a matrix to single precision.
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/// </summary>
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public static Matrix<float> ToSingle(this Matrix<double> matrix)
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{
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return matrix.Map(x => (float)x, Zeros.AllowSkip);
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}
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/// <summary>
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/// Converts a matrix to double precision.
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/// </summary>
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public static Matrix<double> ToDouble(this Matrix<float> matrix)
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{
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return matrix.Map(x => (double)x, Zeros.AllowSkip);
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}
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/// <summary>
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/// Converts a matrix to single precision complex numbers.
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/// </summary>
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public static Matrix<Numerics.Complex32> ToComplex32(this Matrix<Complex64> matrix)
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{
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return matrix.Map(x => new Numerics.Complex32((float)x.Real, (float)x.Imaginary), Zeros.AllowSkip);
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}
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/// <summary>
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/// Converts a matrix to double precision complex numbers.
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/// </summary>
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public static Matrix<Complex64> ToComplex(this Matrix<Numerics.Complex32> matrix)
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{
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return matrix.Map(x => new Complex64(x.Real, x.Imaginary), Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a single precision complex matrix with the real parts from the given matrix.
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/// </summary>
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public static Matrix<Numerics.Complex32> ToComplex32(this Matrix<float> matrix)
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{
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return matrix.Map(x => new Numerics.Complex32(x, 0f), Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a double precision complex matrix with the real parts from the given matrix.
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/// </summary>
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public static Matrix<Complex64> ToComplex(this Matrix<double> matrix)
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{
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return matrix.Map(x => new Complex64(x, 0d), Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a real matrix representing the real parts of a complex matrix.
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/// </summary>
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public static Matrix<double> Real(this Matrix<Complex64> matrix)
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{
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return matrix.Map(x => x.Real, Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a real matrix representing the real parts of a complex matrix.
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/// </summary>
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public static Matrix<float> Real(this Matrix<Numerics.Complex32> matrix)
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{
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return matrix.Map(x => x.Real, Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a real matrix representing the imaginary parts of a complex matrix.
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/// </summary>
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public static Matrix<double> Imaginary(this Matrix<Complex64> matrix)
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{
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return matrix.Map(x => x.Imaginary, Zeros.AllowSkip);
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}
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/// <summary>
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/// Gets a real matrix representing the imaginary parts of a complex matrix.
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/// </summary>
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public static Matrix<float> Imaginary(this Matrix<Numerics.Complex32> matrix)
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{
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return matrix.Map(x => x.Imaginary, Zeros.AllowSkip);
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}
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}
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}
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