впервые сказано пользователем Scorpion[MG] 24.06.2005 в 17:20
и с тех пор употреблялось 25
Сообщения со словом
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- 07.08.2013, 11:02. A_Ponta??? в теме
«Уровень русского рока»
... кинан мэйнард который еще солистом a perfect cicle и tool black light burns детище гитариста группы limp...
- 09.11.2012, 22:36. Vlad_Lukman в теме
«CFTOOL или FIT в MATLAB»
... многочленов степеней 2 и 1 существует curve fitting tool cftool и функции типа nonlinearmodel fit но при использовании...
- 29.11.2011, 01:35. Chegevarabest в теме
«The English Language - just in case you are interested»
... by reading books books are a powerful educational tool since they are not intended for a quick consumption by a broad audience but by rather more involved reader in search of mental stimulation i dont believe tv or news are a good tool to improve ones english at least one for someone...
- 17.11.2011, 02:25. jiffy в теме
«The C Programming Language.»
... linked not stripped формат elf определяется документом tool interface standard tis executable and linking...
- 11.11.2010, 01:06. Chameleon в теме
«Maxima на Corum'е»
... 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 powerful machines over the years and eventually the mathlab group acquired its own dec-pdp-10 mit-ml running the its operating system this machine became a host on the early arpanet predecessor to the internet which helped it gain a wider audience as the effort grew in scope and ability the general interest it created led to attempts to port the code that is to take the series of instructions which had been written for one machine and operating system and adapt them to run on another different system the earliest such effort was the running of macsyma in a maclisp environment on a ge honeywell multics mainframe another system at mit the multics environment provided essentially unlimited address space but for various reasons the system was not favored by programmers and the multics implementation was never popular the next effort came about when a group at mit designed and implemented a machine which was based on the notion that hardware support of lisp would make it possible to overcome problems that inhibited the solution of many interesting problems the lisp machine clearly had to support macsyma the largest lisp program of the day and the effort paid off with probably the best environment for macsyma to date although requiring something of an expert perspective lisp machines as well as other special purpose hardware tended to become slow and expensive compared to off-the-shelf machines built around merchant-semiconductor cpus and so the two companies that were spun off from mit symbolics inc and lmi both eventually disappeared texas instruments built a machine called the explorer bases on the lmi design but also stopped production around 1980 the idea of porting macsyma began to be more interesting and the unix based vaxima distribution which ran on a lisp system built at the university of california at berkeley for vax unix demonstrated that it was both possible and practical to run the software on less expensive systems this system franz lisp was implemented primarily in lisp with some parts written in c once the code stabilized the new version opened up porting possibilities ultimately producing at least six variations on the theme which included macsyma maxima paramax paramacs punimax aljbar and vaxima these have followed somewhat different paths and most were destined to fade into the sunset the two which survived obscurity maxima and macsyma we will discuss below punimax was actually an offshoot of maxima some time around 1994 bruno haible author of clisp ported maxima to clisp due to the legal concerns of richard petti then the owner of the commercial macsyma the name was changed to punimax it has not seen much activity since the initial port and although it is still available the ability of the main maxima distribution to compile on clisp makes further development of punimax unlikely there is a certain surprising aspect in this multiplicity of versions and platforms given how the code seemed tied to the development environment which included a unique operating system fortunately berkeley s building a replica of the maclisp environment on the mit-ml pdp-10 using tools available in almost any unix c environment helped...
- 05.11.2010, 21:10. bulzz в теме
«Кто что слушает»
... john-5 system of a down his infernal majesty korn tool alice in chains radiohead blink 182 manicure bloodhound...
- 28.01.2010, 13:59. Мишель в теме
... поверхности марса специальным инструментом rock abrasion tool были взяты пробы породы толщиной 5 мм по оценкам...
- 02.02.2009, 21:33. ni4ei в теме
... парься строишь график lny от x потом advansed fittig tool там даже специальный gaussian fit есть
- 28.01.2009, 16:18. Lerk в теме
«Из черного в белое.»
... выделяешь нужную область каким-нить lasso или лучше pen tool ом и потом шаманишь с параметрами картинки ну...
- 29.08.2008, 17:50. Neper в теме
... environment rpm fusion free miscellaneous command line tools rpm fusion free sound and video rpm fusion free xfce библиотеки разработки веб-сервер графика графическая среда gnome графическая среда kde графическая среда kde графические средства интернет графические средства интернет звук и видео игры и развлечения научные и инженерные основа офисные приложения подготовка публикаций подготовка публикаций поддержка оборудования поддержка печати развивающие программы разработка по для x разработка на java редакторы сервер электронной почты сетевые серверы система x window система x window системные средства словари к stardict средства администрирования средства настройки сервера средства разработки средства разработки средства разработки gnome средства разработки устаревших приложений текстовые средства интернет устаревшие шрифты шрифты шрифты microsoft available groups fedora eclipse games and entertainment rpm fusion free games and entertainment rpm fusion nonfree hardware support rpm fusion free hardware support rpm fusion nonfree sugar desktop environment system tools rpm fusion free база данных mysql база данных postgresql базы данных веб программирование виртуализация графика графическая среда gnome звук и видео игры и развлечения кластеры оконные менеджеры поддержка оборудования разработка по для xfce разработка на java сервер dns сервер ftp сервер новостей средства разработки kde упаковщик fedora устаревшие сетевые серверы файловый сервер для windows done далее например надо поставить mp3 плеер код yum groupinfo звук и видео вывод код loaded plugins refresh-packagekit setting up group process group звук и видео description от записи cd до проигрывания звуковых дисков и mp3 эта группа пакетов позволяет работать со звуком и видео в системе mandatory packages alsa-utils vorbis-tools default packages alsa-plugins-pulseaudio bluez-utils-alsa cdparanoia codeina genisoimage gstreamer-plugins-good gstreamer-plugins-pulse icedax pavucontrol pulseaudio pulseaudio-utils rhythmbox sound-juicer sox totem totem-mozplugin totem-nautilus wodim optional packages helixplayer miro abcde adplay alsamixergui amarok ardour argyllcms asunder audacious audacity aumix banshee bmpx brasero came cdcollect cdlabelgen cdrskin cowbell csound-gui dvdauthor dvdisaster dvgrab easytag exaile festvox-bdl-arctic-hts festvox-clb-arctic-hts festvox-rms-arctic-hts gcdmaster gcombust gcstar gnomad2 gnomebaker gnomeradio grip gtkpod id3v2 isomaster jack-audio-connection-kit jokosher k3b kaffeine kdemultimedia kid3 kover mikmod muine mybashburn nyquist padevchooser paman paprefs pavumeter picard pitivi pulseaudio-module-lirc pulseaudio-module-zeroconf quodlibet regionset rosegarden4 serpentine soundconverter soundtracker sweep tagtool tclabc totem-lirc tvtime ushare v4l2-tool vdr vdr-femon vdr-osdteletext vdr-skins vdr-skinsoppalusikka...