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Sather
Sather is an object-oriented programming language. It originated circa 1990 at the International Computer Science Institute (ICSI) at the University of California, Berkeley, developed by an international team led by Steve Omohundro. It supports garbage collection and generics by subtypes. Originally, it was based on Eiffel, but it has diverged, and now includes several functional programming features. The name is inspired by Eiffel; the Sather Tower is a recognizable landmark at Berkeley, named after Jane Krom Sather, the widow of Peder Sather, who donated large sums to the foundation of the university. Sather also takes inspiration from other programming languages and paradigms: iterators, design by contract, abstract classes, multiple inheritance, anonymous functions, operator overloading, contravariant type system. The original Berkeley implementation (last stable version 1.1 was released in 1995, no longer maintained) has been adopted by the Free Software Foundation t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peder Sather
Peder Sather (September 25, 1810 – December 28, 1886) was a Norwegian-born American banker who is best known for his legacy to the University of California, Berkeley. His widow, Jane K. Sather, donated money in his memory for two of the school's most famous landmarks. Sather Gate and Sather Tower, which is more commonly known as ''The Campanile'', are both California Historical Landmarks which are registered National Register of Historic Places. Biography Peder Pedersen Sæther was born in Odal, a traditional district in the county of Hedmark in eastern Norway, on the farm Nordstun Nedre Sæther (Sør-Odal). His parents were Peder Larsen and Mari Kristoffersdatter. Sæther was a fisherman before emigrating to New York City in about 1832. He entered the banking house of Drexel & Co. in Philadelphia and remained there until 1850. Philadelphia banker Francis Martin Drexel offered to assist Peder Sather and his business partner Edward W. Church in establishing a bank in Sa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sather Tower
Sather Tower is a bell tower with clocks on its four faces on the campus of the University of California, Berkeley. It is more commonly known as The Campanile ( , also ) for its resemblance to the Campanile di San Marco in Venice. It is a recognizable symbol of the university. Given by Jane K. Sather in memory of her husband, banker Peder Sather, it is the third-tallest bell-and-clock-tower in the world. Its current 61-bell carillon, built around a nucleus of 12 bells also given by Jane Sather, can be heard for many miles and supports an extensive program of education in campanology. Sather Tower also houses many of the Department of Integrative Biology's fossils (mainly from the La Brea Tar Pits) because its cool, dry interior is suited for their preservation. Overview At tall, it is the second-tallest free-standing bell-and- clock-tower in the world. It includes seven principal floors and an eighth-floor observation deck above the base. Designed by John Galen Howard, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jane Krom Sather
Jane K. Sather (''née'' Krom; March 9, 1824 – December 11, 1911) was an American philanthropist and one of the University of California, Berkeley's most significant benefactors. She founded the Sather Professorship of Classical Literature and the Sather Professorship of History at Berkeley. Personal life and politics She was born Jane Krom in Brooklyn on March 9, 1824, to a French mother and a Dutch father. Krom married Peder Sather, a trustee of the University of California, in 1882 after the death of her first husband and Peder's first wife. Her first husband is named in some sources as John Reade or John Read. She was a keen supporter of women's suffrage and a prominent member of her local branch of Sorosis (est. 1868), the first professional women's club in the United States. Jane K. Sather died on December 11, 1911, and is buried in Oakland's Mountain View Cemetery. Relationship with University of California After Peder Sather's death, the responsibility of managin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant university and the founding campus of the University of California system. Its fourteen colleges and schools offer over 350 degree programs and enroll some 31,800 undergraduate and 13,200 graduate students. Berkeley ranks among the world's top universities. A founding member of the Association of American Universities, Berkeley hosts many leading research institutes dedicated to science, engineering, and mathematics. The university founded and maintains close relationships with three national laboratories at Berkeley, Livermore and Los Alamos, and has played a prominent role in many scientific advances, from the Manhattan Project and the discovery of 16 chemical elements to breakthroughs in computer science and genomics. Berkeley is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steve Omohundro
Stephen Malvern Omohundro (born 1959) is an American computer scientist whose areas of research include Hamiltonian physics, dynamical systems, programming languages, machine learning, machine vision, and the social implications of artificial intelligence. His current work uses rational economics to develop safe and beneficial intelligent technologies for better collaborative modeling, understanding, innovation, and decision making. Education Omohundro has degrees in physics and mathematics from Stanford University (Phi Beta Kappa) and a Ph.D. in physics from the University of California, Berkeley. Learning algorithms Omohundro started the "Vision and Learning Group" at the University of Illinois which produced 4 Masters and 2 Ph.D. theses. His work in learning algorithms included a number of efficient geometric algorithms, the manifold learning task and various algorithms for accomplishing this task, other related visual learning and modelling tasks, the model merging approach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eiffel (programming Language)
Eiffel is an object-oriented programming, object-oriented programming language designed by Bertrand Meyer (an object-orientation proponent and author of ''Object-Oriented Software Construction'') and Eiffel Software. Meyer conceived the language in 1985 with the goal of increasing the reliability of commercial software development; the first version becoming available in 1986. In 2005, Eiffel became an International Organization for Standardization, ISO-standardized language. The design of the language is closely connected with the Eiffel programming method. Both are based on a set of principles, including design by contract, command–query separation, the uniform access principle, uniform-access principle, the Single choice principle, single-choice principle, the open–closed principle, and option–operand separation. Many concepts initially introduced by Eiffel later found their way into Java (programming language), Java, C Sharp (programming language), C#, and other langua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CLU (programming Language)
CLU is a programming language created at the Massachusetts Institute of Technology (MIT) by Barbara Liskov and her students starting in 1973.Liskov, Barbara (1992). "A history of CLU". The second ACM SIGPLAN conference on History of programming languages. While it did not find extensive use, it introduced many features that are used widely now, and is seen as a step in the development of object-oriented programming (OOP). Key contributions include abstract data types, call-by-sharing, iterators, multiple return values (a form of parallel assignment), type-safe parameterized types, and type-safe variant types. It is also notable for its use of classes with constructors and methods, but without inheritance. Clusters The syntax of CLU was based on ALGOL, then the starting point for most new language designs. The key addition was the concept of a ''cluster'', CLU's type extension system and the root of the language's name (CLUster). Clusters correspond generally to the concept ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Covariance And Contravariance (computer Science)
Many programming language type systems support subtyping. For instance, if the type is a subtype of , then an expression of type should be substitutable wherever an expression of type is used. Variance refers to how subtyping between more complex types relates to subtyping between their components. For example, how should a list of s relate to a list of s? Or how should a function that returns relate to a function that returns ? Depending on the variance of the type constructor, the subtyping relation of the simple types may be either preserved, reversed, or ignored for the respective complex types. In the OCaml programming language, for example, "list of Cat" is a subtype of "list of Animal" because the list type constructor is covariant. This means that the subtyping relation of the simple types are preserved for the complex types. On the other hand, "function from Animal to String" is a subtype of "function from Cat to String" because the function type constructor is contr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cool (programming Language)
Cool, an acronym for Classroom Object Oriented Language, is a computer programming language designed by Alexander Aiken for use in an undergraduate compiler course project. While small enough for a one term project, Cool still has many of the features of modern programming languages, including objects, automatic memory management, strong static typing and simple reflection. The reference Cool compiler is written in C++, built fully on the public domain tools. It generates code for a MIPS simulator, SPIM. Thus, the language should port easily to other platforms. It has been used for teaching compilers at many institutions (such as the University of California at Berkeley, where it was first used or Shahid Beheshti University of Iran) and the software is stable. This language is unrelated to the COOL language included in CLIPS CLIPS is a public domain software tool for building expert systems. The name is an acronym for "C Language Integrated Production System." The syntax ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Software Foundation
The Free Software Foundation (FSF) is a 501(c)#501(c)(3), 501(c)(3) non-profit organization founded by Richard Stallman on October 4, 1985, to support the free software movement, with the organization's preference for software being distributed under copyleft ("share alike") terms, such as with its own GNU General Public License. The FSF was incorporated in Boston, Massachusetts, United States, US, where it is also based. From its founding until the mid-1990s, FSF's funds were mostly used to employ software developers to write free software for the GNU Project. Since the mid-1990s, the FSF's employees and volunteers have mostly worked on legal and structural issues for the free software movement and the free software community. Consistent with its goals, the FSF aims to use only free software on its own computers. History The Free Software Foundation was founded in 1985 as a Nonprofit corporation, non-profit corporation supporting free software development. It continued existi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Karlsruhe
The Karlsruhe Institute of Technology (KIT; german: Karlsruher Institut für Technologie) is a public research university in Karlsruhe, Germany. The institute is a national research center of the Helmholtz Association. KIT was created in 2009 when the University of Karlsruhe (), founded in 1825 as a public research university and also known as the "Fridericiana", merged with the Karlsruhe Research Center (), which had originally been established in 1956 as a national nuclear research center (, or KfK). KIT is a member of the TU9, an incorporated society of the largest and most notable German institutes of technology.TU9 As part of the German Universities Excellence Initiative KIT was one of three universities which were awarded excellence status in 2006. In the following "German Excellence Strategy" KIT was awarded as one of eleven "Excellence Universities" in 2019. KIT is among the leading technical universities in Germany and Europe. According to different bibliometric ranking ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operator Overloading
In computer programming, operator overloading, sometimes termed ''operator ad hoc polymorphism'', is a specific case of polymorphism, where different operators have different implementations depending on their arguments. Operator overloading is generally defined by a programming language, a programmer, or both. Rationale Operator overloading is syntactic sugar, and is used because it allows programming using notation nearer to the target domain and allows user-defined types a similar level of syntactic support as types built into a language. It is common, for example, in scientific computing, where it allows computing representations of mathematical objects to be manipulated with the same syntax as on paper. Operator overloading does not change the expressive power of a language (with functions), as it can be emulated using function calls. For example, consider variables , and of some user-defined type, such as matrices: In a language that supports operator overloading, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
