numl.Math.LinearAlgebra.Matrix.Extract C# (CSharp) Method

        public static Matrix Extract(Matrix m, int x, int y, int width, int height, bool safe = true)
        {
            Matrix m2 = Zeros(height, width);
            for (int i = y; i < y + height; i++)
                for (int j = x; j < x + width; j++)
                    if (safe && i < m.Rows && j < m.Cols)
                        m2[i - y, j - x] = m[i, j];

            return m2;
        }

 /// <summary>A Matrix extension method that extracts this object.</summary>
 /// <param name="m">Matrix.</param>
 /// <param name="x">The x coordinate.</param>
 /// <param name="y">The y coordinate.</param>
 /// <param name="width">The width.</param>
 /// <param name="height">The height.</param>
 /// <param name="safe">(Optional) true to safe.</param>
 /// <returns>A Matrix.</returns>
 public static Matrix Extract(this Matrix m, int x, int y, int width, int height, bool safe = true)
 {
     return(Matrix.Extract(m, x, y, width, height, safe));
 }