public void AtanhTest()
        {
            double d        = .7d;
            double expected = .86730d;
            double actual   = GaussKruger.Atanh(d);

            Assert.That(actual, Is.EqualTo(expected).Within(.000001));
        }
        public void GridToGeodeticTest()
        {
            var coordinate = new GridCoordinate {
                X = 7094946, Y = 1693701, Projection = SwedishProjections.RT90_25GonV
            };
            var expected = new GeodeticCoordinate {
                Latitude = 63.90786d, Longitude = 19.75247d
            };
            var actual = GaussKruger.GridToGeodetic(coordinate);

            Assert.IsTrue(expected.Equals(actual));
        }