//------------------------------------------------------------------------- public virtual void testTransposeMatrix() { DoubleMatrix m0 = DoubleMatrix.EMPTY; assertEquals(m0.transpose(), DoubleMatrix.EMPTY); DoubleMatrix m1 = DoubleMatrix.copyOf(new double[][] { new double[] { 1, 2, 3 }, new double[] { 4, 5, 6 }, new double[] { 7, 8, 9 } }); assertEquals(m1.transpose(), DoubleMatrix.copyOf(new double[][] { new double[] { 1, 4, 7 }, new double[] { 2, 5, 8 }, new double[] { 3, 6, 9 } })); DoubleMatrix m2 = DoubleMatrix.copyOf(new double[][] { new double[] { 1, 2, 3, 4, 5, 6 }, new double[] { 7, 8, 9, 10, 11, 12 }, new double[] { 13, 14, 15, 16, 17, 18 } }); assertEquals(m2.transpose(), DoubleMatrix.copyOf(new double[][] { new double[] { 1, 7, 13 }, new double[] { 2, 8, 14 }, new double[] { 3, 9, 15 }, new double[] { 4, 10, 16 }, new double[] { 5, 11, 17 }, new double[] { 6, 12, 18 } })); }