Carl Theodor Anger

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Carl Theodor Anger (born July 31, 1803 in Danzig ; † March 25, 1858 there ) was a German mathematician and astronomer .

life and work

Carl Theodor Anger was born in Gdansk on July 31, 1803, the son of a tax officer. There he attended grammar school up to secondary and subsequently the art and trade school. From 1823 he studied mathematics at the Albertus University in Königsberg (Prussia) and was trained in astronomy by Friedrich Wilhelm Bessel from 1826 as his assistant at the Königsberg observatory . There he was particularly involved in the zone observations and the Bessel pendulum experiments.

In 1831 he was called back to Gdansk to manage the newly built observatory of the Natural Science Society in Gdansk . He also took over astronomical lessons at the navigation school and mathematics lessons at the trade school, of which he was director from 1834 to 1855. Since 1836 he has been teaching mathematics at the Danzig Gymnasium .

He had been a member of the Natural Research Society since 1831 and was its chairman from 1847 to 1855.

Carl Theodor Anger wrote numerous publications in various areas of astronomy, physics and mathematics. In his scientific work, he took up some topics that his teacher Bessel had worked on. A special solution to a form of the inhomogeneous Bessel differential equation is called the Anger function . In mathematics, he was particularly concerned with perspective representation.

Fonts (selection)

  • Analytical representation of the bas-relief perspective. Danzig 1834.
  • Plaques for the relief of the moon ephemeris. Hall 1831.
  • About the most certain determination of the geographical latitude from observations with a mirror sextant. Koenigsberg 1835.
  • Remarks on some methods of determining latitude using mirror sextants or similar instruments. Koenigsberg 1839.
  • Basics of the astronomical art of observation. Danzig 1847.
  • On the theory of perspective for crooked picture surfaces, with special consideration of a more precise construction of the panoramas. In: Astronomical News , Volume 31 (1850), No. 729, col. 143-144 and supplement.
  • Investigations into perspective bias. ( Writings of the Natural Research Society of Danzig , Volume 4) Danzig 1851.
  • Théorie de la perspective-relief. In: Astronomical News , Volume 38 (1854), No. 906, col. 289-296.
  • About the influence of the theory of projection on the new geometry. Danzig 1845, 2nd edition 1856.
  • Popular lectures on astronomy. Danzig 1862.

literature

  • Franz Kössler: Personal dictionary of teachers of the 19th century. Giessen 2008 (with list of publications).

Web links

personal data
SURNAME Anger, Carl Theodor
ALTERNATIVE NAMES Anger, Karl Theodor
BRIEF DESCRIPTION German mathematician and astronomer
DATE OF BIRTH July 31, 1803
PLACE OF BIRTH Danzig
DATE OF DEATH March 25, 1858
Place of death Danzig