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Euler Diagram
An Euler diagram (, ) is a diagrammatic means of representing Set (mathematics), sets and their relationships. They are particularly useful for explaining complex hierarchies and overlapping definitions. They are similar to another set diagramming technique, Venn diagrams. Unlike Venn diagrams, which show all possible relations between different sets, the Euler diagram shows only relevant relationships. The first use of "Eulerian circles" is commonly attributed to Swiss mathematician Leonhard Euler (1707–1783). In the United States, both Venn and Euler diagrams were incorporated as part of instruction in set theory as part of the new math movement of the 1960s. Since then, they have also been adopted by other curriculum fields such as reading as well as organizations and businesses. Euler diagrams consist of simple closed shapes in a two-dimensional plane that each depict a set or category. How or whether these shapes overlap demonstrates the relationships between the sets. Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Weise
Christian Weise (30 April 1642 – 21 October 1708), also known under the pseudonyms Siegmund Gleichviel, Orontes, Catharinus Civilis and Tarquinius Eatullus, was a German writer, dramatist, poet, pedagogue and librarian of the Baroque era. He produced a large number of dramatic works, noted for their social criticism and idiomatic style. In the 1670s he started a fashion for German "political novels". He has also been credited with the invention of the mathematical Euler diagram, though this is uncertain. Biography Christian Weise was born in Zittau, the son of Elias Weise, a ''magister tertium'' or assistant teacher. Weise studied theology at the University of Leipzig, gaining a Magister's degree in 1663. His studies expanded into rhetoric, politics, history and poetry, and for a brief period after his graduation he lectured there in those subjects. However, in 1668 he secured a post at the court in Halle, as the secretary of Simon Philipp von Leiningen-Westerburg, the ministe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
