Hadamar is located in Germany (Regierungsbezirk Gießen, Hesse) and time zone Europe/Berlin.
Places nearby are Elz, Limburg an der Lahn and Diez.
Frankfurt am Main is 63 km away, Cologne is 103 km away and Stuttgart is 204 km away as the crow flies.
Distances from Hadamar to the most important cities in Germany and the world.
50.4459300°
8.0425300°
Involutive change of basis in linear algebra
https://en.wikipedia.org/wiki/Hadamard_transform