Сообщения со словом
«laboratory»

1. 18.11.2013, 16:20. www.МИФИст.ru в теме
   «НИЯУ МИФИ заключил соглашение о сотрудничестве с Окриджской Национальной лабораторией»
   ... окриджской национальной лаборатории oak ridge national laboratory ornl сша дэвид дин подписали меморандум...
2. 13.09.2013, 15:16. login в теме
   «Фрики: границы приличий»
   ... пенсию http www cshl edu archive dr-james-d-wat rbor-laboratory
3. 09.02.2013, 22:20. aess в теме
   «FAQ по лабам по физике»
   скинул а http www mephi ru chairs kaf6 laboratory page php работу номер 1 делают только первые...
4. 27.11.2012, 21:33. Акельев Н. в теме
   «СТО– величайшая афера в истории физики»
   ... roger l easton thomas b vccaskill u s naval research laboratory initial results of the navstar gps nts-2...
5. 24.09.2011, 13:33. Мастеров Александр в теме
   «Master Theory»
   ... and sends them through the earth to an underground laboratory at gran sasso in italy to see how many show...
6. 11.11.2010, 01:06. Chameleon в теме
   «Maxima на Corum'е»
   ... meaning man and computer or machine aided cognition the laboratory for computer science at the massachusetts institute of technology was known as project mac during the initial development of macsyma the name macsyma is now trademarked by macsyma inc is a large computer program designed for the manipulation of algebraic expressions you can use maxima for manipulation of algebraic expressions involving constants variables and functions it can differentiate integrate take limits solve equations factor polynomials expand functions in power series solve differential equations in closed form and perform many other operations it also has a programming language that you can use to extend maxima s capabilities the dangers of computer algebra with all this marvelous capability however you must bear in mind the limitations inherent in any such tool those considering the use of computers to do mathematics particularly students must be warned that these systems are no substitute for hands on work with equations and struggling with concepts these systems do not build your mathematical intuition nor will they strengthen your core skills this will matter a great deal down the road especially to those of you who wish to break new ground in theoretical mathematics and science do not use a computer as a substitute for your basic education by the same token however proficiency with computers and computer based mathematics is crucial for attacking the many problems which literally cannot be solved by pencil and paper methods in many cases problems which would take years by hand can be reduced to seconds by powerful computers also in the course of a long derivation it is sometimes useful for those who have already mastered the fundamentals to do work in these systems as a guard against careless errors or a faster means than a table of deriving some particular result also in case of an error fixing the resulting error can often be much quicker and simpler courtesy of a mathematical notebook which can be reevaluated with the correct parameters in place but just as a computer can guard against human error the human must not trust the computer unquestioningly all of these systems have limits and when those limits are reached it is quite possible for bizarre errors to result or in some cases answers which are actually wrong to say nothing of the fact that the people who programmed these systems were human and make mistakes to illustrate the limits of computer algebra systems we take the following example when given the integral integrate 1 sqrt 2-2 cos x from x -pi 2 to pi 2 mathematica 4 1 gives with no warnings 2 log 4 2 log cos pi 8 2 log sin pi 8 which n evalutates numerically to give 1 00984 maxima 5 6 returns the integral unevaluated the commercial macsyma says the integral is divergent and maple 7 says infinity cite maxima email list here had the person who wished to learn the result blindly trusted most of the systems in question he might have been misled so remember to think about the results you are given the computer is not always necessarily right and even if it gives a correct answer that answer is not necessarily complete a brief history of macsyma the birthplace of macsyma where much of the original coding took place was project mac at mit in the late 1960s and earlier 1970s projectmac was an mit research unit which was folded into the current laboratory for computer science research support for macsyma included the advanced research projects agency arpa department of defense the us department of energy and other government and private sources the original idea first voiced by marvin minsky was to automate the kinds of manipulations done by mathematicians as a step toward understanding the power of computers to exhibit a kind of intelligent behavior the undertaking grew out of a previous effort at mitre corp called mathlab work of carl engelman and others plus the mit thesis work of joel moses on symbolic integration and the mit thesis work of william a martin the new effort was dubbed macsyma project mac s symbolic manipulator the original core design was done in july 1968 and coding began in july 1969 this was long before the days of personal computers and cheap memory initial development was centered around a single computer shared with the artificial intelligence laboratory a dec pdp-6 this was replaced by newer more...
7. 06.09.2010, 20:11. Roxmat в теме
   «ЛУР»
   где написано english laboratory там не висит расписание а наш препод я в...
8. 30.11.2009, 17:42. Злой в теме
   «Автореферат диссертации на соискание ученой степени кандидата алхимических наук»
   ... америка экон эффект данные засекречены jet propulsion laboratory jpl америка экон эффект данные засекречены...
9. 27.03.2009, 12:37. FedorM в теме
   «Поперечный плазменный резонанс в незамагниченной плазме»
   ... ведущей лаборатории сша по физике плазмы plasma physics laboratory princeton university princeton new jersey...
10. 01.10.2008, 02:36. CFC в теме
    «New PhD position»
    ... is available in the kvantti group low temperature laboratory helsinki university of technology the group...