public virtual void test_mapSensitivities()
        {
            CrossGammaParameterSensitivities multiplied = SENSI_1.mapSensitivities(a => 1 / a);
            DoubleMatrix test = multiplied.Sensitivities.get(0).Sensitivity;

            for (int i = 0; i < MATRIX_USD1.columnCount(); i++)
            {
                for (int j = 0; j < MATRIX_USD1.rowCount(); j++)
                {
                    assertEquals(test.get(i, j), 1 / MATRIX_USD1.get(i, j));
                }
            }
        }