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Hubert Stanley Wall
Hubert Stanley Wall (December 2, 1902 – September 12, 1971) was an American mathematician who worked primarily in the field of continued fractions. He is also known as one of the leading proponents of the Moore method of teaching. Early life and education Wall was born in Rockwell City, Iowa on December 2, 1902. He received the Bachelor of Arts and Master of Arts degrees from Cornell College in Mount Vernon, Iowa in 1924. He received his Ph.D. degree from the University of Wisconsin (now University of Wisconsin–Madison) in 1927. He married Mary Kate Parker, a lawyer and Texas assistant Attorney General. Her specialty was election law. Career Upon receiving his Ph.D. Wall joined the faculty at Northwestern University and stayed until 1944 except for the academic year 1938–1939 when he was at the Institute for Advanced Study. He then went to the Illinois Institute of Technology for two years before moving in 1946 to the University of Texas where he spent the rest of hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rockwell City, Iowa
Rockwell City is a city in Calhoun County, Iowa, United States. The population was 2,240 in 2020. It is the county seat of Calhoun County."Calhoun County, IA." . ''www.naco.org.'' Retrieved June 10, 2014. History Rockwell City was ted in 1876. It is named for its founders, John M. Rockwell, and his wife Charlotte M. Rockwell.Demographics 2010 census As of the |
Cornell College
Cornell College is a private college in Mount Vernon, Iowa. Originally the Iowa Conference Seminary, the school was founded in 1853 by George Bryant Bowman. Four years later, in 1857, the name was changed to Cornell College, in honor of iron tycoon William Wesley Cornell. Academics Cornell students study ''one course at a time'' (commonly referred to as "the block plan" or "OCAAT"). Since 1978, school years have been divided into "blocks" of three-and-a-half weeks each (usually followed by a four-day "block break" to round out to four weeks), during which students are enrolled in a single class; what would normally be covered in a full semester's worth of class at a typical university is covered in just eighteen Cornell class days. While schedules vary from class to class, most courses consist of around 30 hours of lecture, along with additional time spent in the laboratory, studying audio-visual media, or other activities. Colorado College in Colorado Springs, Colorado; Mahar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematical Analysts
Mathematics is an area of knowledge that includes the topics of numbers, formulas and related structures, shapes and the spaces in which they are contained, and quantities and their changes. These topics are represented in modern mathematics with the major subdisciplines of number theory, algebra, geometry, and analysis, respectively. There is no general consensus among mathematicians about a common definition for their academic discipline. Most mathematical activity involves the discovery of properties of abstract objects and the use of pure reason to prove them. These objects consist of either abstractions from nature orin modern mathematicsentities that are stipulated to have certain properties, called axioms. A ''proof'' consists of a succession of applications of deductive rules to already established results. These results include previously proved theorems, axioms, andin case of abstraction from naturesome basic properties that are considered true starting points of t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Calhoun County, Iowa
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1971 Deaths
* The year 1971 had three partial solar eclipses (February 25, July 22 and August 20) and two total lunar eclipses (February 10, and August 6). The world population increased by 2.1% this year, the highest increase in history. Events January * January 2 – 66 people are killed and over 200 injured during a crush in Glasgow, Scotland. * January 5 – The first ever One Day International cricket match is played between Australia and England at the Melbourne Cricket Ground. * January 8 – Tupamaros kidnap Geoffrey Jackson, British ambassador to Uruguay, in Montevideo, keeping him captive until September. * January 9 – Uruguayan president Jorge Pacheco Areco demands emergency powers for 90 days due to kidnappings, and receives them the next day. * January 12 – The landmark United States television sitcom ''All in the Family'', starring Carroll O'Connor as Archie Bunker, debuts on CBS. * January 14 – Seventy Brazilian political prisoners are rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1902 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipkn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Lee Moore
Robert Lee Moore (November 14, 1882 – October 4, 1974) was an American mathematician who taught for many years at the University of Texas. He is known for his work in general topology, for the Moore method of teaching university mathematics, and for his racist treatment of African-American mathematics students. Life Although Moore's father was reared in New England and was of New England ancestry, he fought in the American Civil War on the side of the Confederate States of America, Confederacy. After the war, he ran a hardware store in Dallas, then little more than a railway stop, and raised six children, of whom Robert, named after Robert E. Lee, the commander of the Confederate Army of Northern Virginia, was the fifth. Moore entered the University of Texas at Austin, University of Texas at the unusually youthful age of 15, in 1898, already knowing calculus thanks to self-study. He completed the B.Sc. in three years instead of the usual four; his teachers included G. B. Hals ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellinger Integral
In mathematics, the Hellinger integral is an integral introduced by that is a special case of the Kolmogorov integral. It is used to define the Hellinger distance In probability and statistics, the Hellinger distance (closely related to, although different from, the Bhattacharyya distance) is used to quantify the similarity between two probability distributions. It is a type of ''f''-divergence. The Hellin ... in probability theory. References * * * {{integral Definitions of mathematical integration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Hellinger
Ernst David Hellinger (September 30, 1883 – March 28, 1950) was a German mathematician. Early years Ernst Hellinger was born on September 30, 1883 in Striegau, Silesia, Germany (now Strzegom, Poland) to Emil and Julie Hellinger. He grew up in Breslau, attended school and graduated from the Gymnasium there in 1902. When he was studying at the Gymnasium, he became fascinated with mathematics, due to excellent mathematics teachers at the school. Academic career After graduating from the Gymnasium, Ernst Hellinger entered the University of Heidelberg, but didn't complete his studies there. After Heidelberg, he studied at the University of Breslau, before completing his doctorate at the University of Göttingen in 1907 with a thesis entitled ''Die Orthogonalinvarianten quadratischer Formen von unendlich vielen Variablen''. At Göttingen he worked with David Hilbert, one of the most influential mathematicians of the 20th century. Hellinger taught at the University of Göttingen (19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Parabola Theorem
In mathematics, a parabola is a plane curve which is mirror-symmetrical and is approximately U-shaped. It fits several superficially different mathematical descriptions, which can all be proved to define exactly the same curves. One description of a parabola involves a point (the focus) and a line (the directrix). The focus does not lie on the directrix. The parabola is the locus of points in that plane that are equidistant from both the directrix and the focus. Another description of a parabola is as a conic section, created from the intersection of a right circular conical surface and a plane parallel to another plane that is tangential to the conical surface. The line perpendicular to the directrix and passing through the focus (that is, the line that splits the parabola through the middle) is called the "axis of symmetry". The point where the parabola intersects its axis of symmetry is called the "vertex" and is the point where the parabola is most sharply curved. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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