Johann Heinrich Louis Krüger (21 September 1857 – 1 June 1923) was a

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ger ...

mathematician and

surveyor Surveying or land surveying is the technique, profession, art, and science of determining the terrestrial two-dimensional or three-dimensional positions of points and the distances and angles between them. A land surveying professional is ca ...

geodesist Geodesy ( ) is the Earth science of accurately measuring and understanding Earth's figure (geometric shape and size), orientation in space, and gravity. The field also incorporates studies of how these properties change over time and equivale ...

. He became director of the Prussian

Geodetic Institute of Potsdam The GFZ German Research Centre for Geosciences, also known as GFZ Helmholtz Centre Potsdam or just GFZ, is the national research center for Earth Sciences in Germany, located on the Telegrafenberg in Potsdam, in the German federal state of Brande ...

in 1917 and wrote several books on geodesy, operational and theoretical. In 1912, he presented his "Konforme Abbildung des Erdellipsoids in der Ebene", one of the works that led to the 1923 Gauss–Krüger map projection.

References

{{DEFAULTSORT:Kruger, Johann 1857 births 1923 deaths German surveyors 19th-century German mathematicians 20th-century German mathematicians German geodesists