21. Erlang erlang. erlang is a language developed at the Computer Science Laboratory at EllemtelAB and is named after the Danish mathematician agner Krarup erlang. http://www.ericsson.com/cslab/projects/erlang/sqlerlang/node9.html

Next: SQL Up: Short introductions Previous: Short introductions Erlang Erlang is a language developed at the Computer Science Laboratory at Ellemtel AB and is named after the Danish mathematician Agner Krarup Erlang. Erlang was first used inside Ericsson where it was used to write real-time control programs for telephone exchanges and network switches. It is targeted at the communications industry but is a general programming language suitable for almost any applications. The following paragraph describes the most important properties of Erlang. It has been taken directly from the book Concurrent Programming in Erlang Declarative syntax. Erlang has a declarative syntax and is largely free from side-effects. Concurrent. Erlang has a process-based model of concurrency with asynchronous message passing. The concurrency mechanisms in Erlang are light-weight, i.e. processes require little memory, and creating and deleting processes and message passing require little computational effort. Real-time. Erlang is intended for programming soft real-time systems where response times in the order of milliseconds are required.

22. INFORMS: Erlang Prize Of The Applied Probabilty Society This document is used with the permission of University of St. Andrews. agner Kraruperlang. agner erlang was descended on his mother's side from Thomas Fincke. http://www.informs.org/Prizes/whoisErlang.html

Go to INFORMS Page ... INFORMS Home What's New Info for Members Info for Nonmembers Conferences Continuing Education Education/Students Employment Prizes Publications Subdivisions Searchable Databases Links About this Web Site INFORMS Online Bookstore Discussion Search Erlang Prize of the Applied Probability Society of INFORMS Who was Erlang? According to the biography of Erlang published by the School of Mathematics and Statistics at University of St. Andrews, Scotland , Erlang's biography is as follows. This document is used with the permission of University of St. Andrews. Agner Krarup Erlang Born: 1 Jan 1878 in Lonborg (near Tarm), Jutland, Denmark Died: 3 Feb 1929 in Copenhagen, Denmark Agner Erlang was descended on his mother's side from Thomas Fincke . His father was a schoolmaster and Erlang was educated at his father's school when he was young. He took his examinations in Copenhagen at the age of 14 and passed with special distinction after having to obtain special permission to take the examinations because he was below the minimum age. He returned to Lonberg and taught at his father's school for two years. In 1896 he passed the entrance examination to the University of Copenhagen with distinction and, since his parents were poor, he was given free board and lodgings in a College of the University of Copenhagen.

23. INFORMS - Applied Probability Society Prizes 1993 (part of the Control and Communication in Engineering Series).INFORMS Bookstore. erlang Prize, learn more about agner erlang. http://www.informs.org/Prizes/AppliedProbabilityPrize.html

Go to INFORMS Page ... INFORMS Home What's New Info for Members Info for Nonmembers Conferences Continuing Education Education/Students Employment Prizes Publications Subdivisions Searchable Databases Links About this Web Site INFORMS Online Bookstore Discussion Search Applied Probability Society The Society is concerned with the application of probability theory to systems that involve random phenomena and promotes the development and use of methods for the improvement of evaluation, control and design of these systems. Society Awards: Best Publication Award Erlang Prize Best Publication Award This award is for outstanding contributions to the field of applied probability. The award is accompanied by a plaque and a $1,000 honorarium. The Award is given once every two years, and is awarded in fall of odd-numbered years. To be eligible for the award, the contribution (book, paper or set of papers) must meet the following criteria: the contribution must be in Applied Probability; the contribution must have been published (in the case of a set, at least one member of the set) during one-to-four years prior to the year of the award; the contribution must have been written in English, or must have accurate translation available in English;

24. A. K. Erlang - Wikipedia agner Krarup erlang (Born at Lonborg (Lønborg), near Tarm, in Jutland, Denmarkon January 1 1878; died at Copenhagen, Denmark on February 3, 1929), was a http://www.wikipedia.org/wiki/A._K._Erlang

Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk Log in Help A. K. Erlang From Wikipedia, the free encyclopedia. Agner Krarup Erlang (Born at Lonborg (Lønborg), near Tarm , in Jutland Denmark on January 1 ; died at Copenhagen , Denmark on February 3 ), was a Danish mathematician, statistician, and engineer who invented the fields of queueing theory and traffic engineering He was the son of a schoolmaster and with his maternal mathematical ancestor Thomas Fincke , he demonstrated his potential from an early age by being able to read books upside down. He passed the Preliminary Examination offered by the University of Copenhagen, with distinction, at age 14, after receiving dispensation to sit because he was younger than the usual minimum age. For the next two years he taught alongside his father.

25. Queueing Theory - Wikipedia AK (agner Krarup) erlang, a Danish engineer who worked for the Copenhagen TelephoneExchange, published the first paper on queueing theory in 1909. http://www.wikipedia.org/wiki/Queueing_theory

Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk Log in Help Queueing theory From Wikipedia, the free encyclopedia. Queueing theory (spelled queuing theory by Americans) is the mathematical study of waiting lines (or queues ). There are several related processes, arriving at the back of the queue, waiting in the queue (essentially a storage process), and being served by the server at the front of the queue. It is applicable in transport and telecommunication . Occasionally linked to ride theory A. K. (Agner Krarup) Erlang , a Danish engineer who worked for the Copenhagen Telephone Exchange, published the first paper on queueing theory in Kendall introduced the A/B/C type queueing notation in . It has since been extended: 1. A code describing the arrival process. The codes used are:

26. Les Hommes Des Unités : Agner Erlang-2 Translate this page http://www.utc.fr/~tthomass/Themes/Unites/Hommes/erl/Erlang_2.html

27. Call Center Wizard - Free On Line Erlang Simulation Software For agner Krarup erlang. All calculations in this program are based on theworks of the Danish mathematician agner Krarup erlang (18871929). http://www.teleopti.com/callcenter/wizard/about.asp

28. Teleopti - A Leading Supplier For Large Telecom Users Home. agner Krarup erlang. All calculations in this program are based onthe works of the Danish mathematician agner Krarup erlang (18871929). http://www.teleopti.com/CallCenter/wizard/about.asp

29. Find A Grave - Browse By Country: Denmark Assistens Cemetery, Copenhagen, Denmark; erlang, agner Krarup 'AK' b. 1878 d. February3, 1929 Danish scientist who studied the problme of telephone networks. http://www.findagrave.com/cgi-bin/famousSearch.cgi?mode=country&FScountryid=27

30. The Muns Report starts with erlang. agner Krarup erlang (18781929) was a Danishmathematician who was interested in probability. Thanks to his http://www.supportinst.com/Nyheter/the_muns_report/021016.htm

Om CCI/SSI Medlemskap Konferenser Utbildningar ... Läs fler rapporter från Ron Muns 16 oktober, 2002 Staffing and Workforce Planning The two terms are similar, but different: the first, Staffing, focuses on the work schedules of the support team, days into the future. The latter, Workforce Planning, has to do with the size of staff required to meet future demand for work. Why is this so important? The majority of the cost of a support organization is the support staff. Generally, the staff costs are 65 to 80 percent of the overall support organization budget. If you can improve the manner in which you do staffing and workforce planning by 10 percent, your overall budget performance improves by 6.5 to 8 percent. This can be a tremendous cost savings and many organizations achieve even greater performance improvements. In addition to cost reductions, you can begin staffing your support to be in alignment with the work volume peaks and valleys. This results in improvements in speed to answer, first call resolution rates (right staff on the phones when they are needed), and improved customer satisfaction levels.

31. Smart Computing-Editorial Encyclopedia entries in this article erlang erlang is a programming languagenamed for agner erlang (18781929), the Danish telecommunications engineer. http://www.smartcomputing.com/editcat/SMART/OTHER SUBJECTS OF INTEREST/176/18446

Reference Series E-mail This To A Friend Computing Encyclopedia, Volume 2: E-L Erlang to ethics Encyclopedia entries in this article: Erlang ERP error escrow service ... ethics Erlang Erlang is a programming language named for Agner Erlang (1878-1929), the Danish telecommunications engineer. The Swedish telecommunications giant Ericsson (primarily known in the United States for its cellular phones) developed the Erlang language, which is now primarily used in telecommunications equipment. The language grew out of the Ericsson Computer Science Laboratory from a team that included Joe Armstrong, Robert Virding, and Mike Williams. Erlang is good for telecommunications devices because it is fault-tolerant (meaning that it prevents errors from crashing the system) and lets programs be easily shared and distributed between systems. Also, Erlang’s design lets a program assembled on one computer run on any other also running Erlang, and Erlang includes special support for networking issues. Erlang is available as an open-source language from Erlang ( http://wwwerlang.org

32. Calculadora Erlang B Translate this page Informa. agner Krarup erlang Definiciones de ingeniería de tráfico Enlacesexternos de ingeniería de tráfico Envía comentarios o consultas. http://www.telefonica.net/web/vr/erlang

Calculadora Erlang Indice Calculadoras Herramientas Informa http://telefonica.net/web/erlang/index.htm

33. Erlang Calculator Information. agner Krarup erlang Definitions of traffic engineering Trafficengineering links Email me. http//telefonica.net/web/erlang/eng/index.htm. http://personal.telefonica.terra.es/web/vr/erlang/eng/

Erlang Calcula t or Ind ex Calcula t ors Tools Information http://telefonica.net/web/erlang/eng/index.htm

34. Calculadora Erlang B Translate this page Herramientas. Informa. agner Krarup erlang Definiciones de ingeniería de tráficoEnlaces externos de ingeniería de tráfico Envía comentarios o consultas. http://personal.telefonica.terra.es/web/vr/erlang/indexinf.htm

Indice Calculadoras Herramientas Informa

35. What Is An Erlang The suggested method uses both erlang B and erlang C. AK erlang a tribute.agner Krarup erlang was born in 1878 in Lønborg, Denmark. http://www.erlang.com/whatis.html

Home Free calculators Products Tech. papers ... About us This paper describes the telecommunications unit Erlang, and its application in teletraffic theory. Online Erlang Traffic Calculators are also hosted at this Web site and can be used free of charge now. Site highlights Home page Online Calculators Products Forum ... Contact us JUST LAUNCHED Ansapoint 2 Powerful call center staff analyzer with many new features. Free upgrades to existing Ansapoint customers. Click here for info Free newsletter To receive our newsletters, enter your email address and press the button: Privacy statement Contents Erlang - a unit of traffic Erlang traffic models Further reading A.K. Erlang - a tribute ... Conclusion Erlang - a unit of traffic An Erlang is a unit of telecommunications traffic measurement. Strictly speaking, an Erlang represents the continuous use of one voice path. In practice, it is used to describe the total traffic volume of one hour. For example, if a group of user made 30 calls in one hour, and each call had an average call duration of 5 minutes, then the number of Erlangs this represents is worked out as follows: Minutes of traffic in the hour number of calls x duration Minutes of traffic in the hour 30 x 5 Minutes of traffic in the hour Hours of traffic in the hour Hours of traffic in the hour Traffic figure 2.5 Erlangs

36. Erlang Programming Language - A Whatis Definition Named for the Danish mathematician agner Krarup erlang, the language was developedby the Ericsson Compute. Search our ITspecific encyclopedia for http://www.whatis.com/definition/0,,sid9_gci212072,00.html

Search our IT-specific encyclopedia for: or jump to a topic: Choose a topic... CIO CRM Databases Domino Enterprise Linux IBM S/390 IBM AS/400 Networking SAP Security Solaris Storage Systems Management Visual Basic Web Services Windows 2000 Windows Manageability Advanced Search Browse alphabetically: A B C D ... Programming Erlang programming language Also see erlang , a unit of telephone traffic. Erlang is a programming language designed for developing robust systems of programs that can be distributed among different computers in a network. Named for the Danish mathematician Agner Krarup Erlang, the language was developed by the Ericsson Computer Sciences Lab to build software for its own telecommunication products. In use for a number of years at Ericsson and other companies, Erlang is taught in over 80 universities and colleges world-wide and is freely available as open source code. Erlang is similar to Java in that it uses a virtual machine and supports multithreading . However, whereas the Java development community focuses on Web applications, Erlang is aimed at the market for extremely robust servers and embedded systems. Erlang is described as a functional programming language, meaning that it emphasizes the evaluation of expressions rather than the execution of commands. The expressions use functions to derive basic values. (Two other well-known programming models are

37. Recommended Reading Telephony Links. The http//www.GHTROUT.com/ WWW site has links tomany telephony related sites. Biography of agner Krarup erlang. http://members.iinet.net.au/~clark/recommended_reading.htm

Erlang: Traffic and Queuing Software Recommended Reading Français Deutsch Italiano Português Español Home Testimonials Erlang-G Program Erlang-P Program ... Order by Fax/PO Here are some books or authors I have found useful in better understanding the complex math behind this subject Some useful documents are: Erlang/Traffic Engineering References Telephony Links. The http://www.GHTROUT.com/ WWW site has links to many telephony related sites. Biography of Agner Krarup Erlang This is just for interest, and so we all know where the units Erlang came from Worked Examples The Erlang Program Help File includes a number of worked examples. Download the Erlang Installation kit now for free, install the software, then see the Examples Section of the included Help File. Traffic Modeling Equations Reference This document has all the equations behind the Erlang program software. It is " The document I wished I had when I started writing the software ". It replaces about 4 textbooks on this subject - as no texts have all the equations clearly described, with examples. You can download a version of this document now for free, but all the equations are blanked out. If you like what you see, please buy a copy.

38. Re: Erlang, The Mathematician? Joe Armstrong wrote just out of curiosity, was erlang named forthe Danish mathematician agner Krarup erlang? Yes The http://www.erlang.org/ml-archive/erlang-questions/199902/msg00003.html

Date Prev Date Next Thread Prev Thread Next ... Thread Index Re: Erlang, the mathematician? To Subject : Re: Erlang, the mathematician? From Date : Mon, 1 Feb 1999 06:20:24 -0800 Message-ID 001f01be4dee$04d6e520$6e02a8c0@crd.int2.inversenet.com Follow-Ups Re: Erlang, the mathematician? From: Re: Erlang, the mathematician? From: Prev by Date: Re: Erlang, the mathematician? Next by Date: Re: Erlang, the mathematician? Prev by thread: Re: Erlang, the mathematician? Next by thread: Re: Erlang, the mathematician? Index(es): Date Thread

39. Re: Erlang, The Mathematician? Craig Dickson wrote Joe Armstrong wrote just out of curiosity,was erlang named for the Danish mathematician agner Krarup erlang ? http://www.erlang.org/ml-archive/erlang-questions/199902/msg00004.html

Date Prev Date Next Thread Prev Thread Next ... Thread Index Re: Erlang, the mathematician? To Subject : Re: Erlang, the mathematician? From Date : Mon, 01 Feb 1999 18:05:00 +0100 CC : erlang-questions@erlang.org Message-ID 36B5DEBC.5C654A4A@erix.ericsson.se Organization : CSLab References 001f01be4dee$04d6e520$6e02a8c0@crd.int2.inversenet.com Follow-Ups Re: Erlang, the mathematician? From: References Re: Erlang, the mathematician? From: Prev by Date: Re: Erlang, the mathematician? Next by Date: Re: Erlang, the mathematician? Prev by thread: Re: Erlang, the mathematician? Next by thread: Re: Erlang, the mathematician? Index(es): Date Thread

40. Excite France - Répertoire - Mathematicians z=1 pg=2 br=1. 14. erlang, agner Krarup (18781929), Early telecom theorist,after whom a unit of measurement and a programming language are named. http://www.excite.fr/directory/Science/Math/Mathematicians

METEO TRADUCTEUR JEUX HOROSCOPE ... E-CARTES makeAD("http://ad.tiscali.com","/SITE=FR.EX.EXCITE/AREA=SCIENCES/POS=C1/LANG=IT/AAMSZ=468x60",468,60) WEB IMAGES Directory Science ... Math Mathematicians Recherchez votre Recherche d'Imagines Excite Network Italia UK France Deutschland ... Forum - Usenet sci.crypt Forum - Usenet sci.crypt.research Forum - Usenet sci.math Forum - Usenet sci.math.num-analysis 80 sites web dans la cat©gorie Mathematicians Mega Math by Flansburg and Trudeau Mega Math teaches secret short cuts to perform math like a human calculator. Originally developed to help children. Amaze friends and associates. Trudeau Online since 1995. www.trudeau.co.uk sponsored link Lindamood-Bell Learning Processes Internationally recognized research-based programs for the development of processing skills that underlie reading, spelling, comprehension, critical thinking and math. All ages appropriate. www.lindamoodbell.com sponsored link Ackermann, Wilhelm (1896-1962) Wilhelm Ackermann was a mathematical logician who worked with Hilbert in G¶ttingen. See Ackermann's function in today's textbooks. http://www-groups.dcs.st-and.ac.uk/history/Mathematicians/Ac

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