[R-br] [OFF] Biblioteca C para matrizes.
Pedro Rafael
pedro.rafael.marinho em gmail.com
Terça Agosto 14 20:41:18 BRT 2012
Benilton, você conhece alguma biblioteca boa de C++ para trabalhar com
cálculo diferencial e integral, alguma semelhante à GSL?
Obrigado
[ ],
Pedro Rafael Diniz Marinho.
Em 13 de agosto de 2012 16:09, Pedro Rafael
<pedro.rafael.marinho em gmail.com> escreveu:
> Eu rodei o programa em um ubuntu, instalei o cmake via apt-get e
> compilei o fonte do armadiilo. O programa rodou sem nenhum problema.
> Não sei porque no Fedora 17 ele não configurou o arquivo
> automaticamente. Eu compilei o programa no ubuntu usando: g++ -o
> programa programa.cpp -larmadillo.
>
> Obrigado aí Benilton pela ajuda,
> Pedro Rafael Diniz Marinho.
>
>
> Em 13 de agosto de 2012 15:32, beniltoncarvalho [via R-br]
> <ml-node+s2285057n4655857h44 em n4.nabble.com> escreveu:
>> eh algum config...
>>
>> Sent from a mobile device
>>
>> On Aug 13, 2012 7:17 PM, "Pedro Rafael" <[hidden email]> wrote:
>>>
>>> Vou tentar procurar qual o arquivo que devo fazer essa alteração que
>>> você me informou.
>>> Obrigado.
>>> [ ],
>>> Pedro Rafael Diniz Marinho.
>>>
>>>
>>> Em 13 de agosto de 2012 05:53, beniltoncarvalho [via R-br]
>>> <[hidden email]> escreveu:
>>>
>>> > mais provavel vc nao ter habilitado LAPACK/BLAS durante a compilacao
>>> > do Armadillo... ja' nao lembro exatamente o arquivo, mas ha' um q vc
>>> > precisa modificar manualmente (caso esteja fazendo a instalacao
>>> > manual) e deixar algo como
>>> >
>>> > define ARMA_USE_LAPACK
>>> > define ARMA_USE_BLAS
>>> >
>>> > b
>>> >
>>> > 2012/8/13 Pedro Rafael <[hidden email]>:
>>> >
>>> >> Será que é alguma coisa com o sistema operacional?
>>> >> [ ],
>>> >> Pedro Rafael Diniz Marinho.
>>> >>
>>> >>
>>> >> Em 12 de agosto de 2012 22:36, Pedro Rafael
>>> >> <[hidden email]> escreveu:
>>> >>> Tentei remover a biblioteca armadillo e instalar as dependências
>>> >>> necessárias e no final reinstalei.
>>> >>> [ ],
>>> >>> Pedro Rafael Diniz Marinho.
>>> >>>
>>> >>>
>>> >>> Em 12 de agosto de 2012 22:34, Pedro Rafael
>>> >>> <[hidden email]> escreveu:
>>> >>>> Valeu Benilton. O problema da compilação n ocorre. Possivelmente as
>>> >>>> bibliotecas necessárias estão instaladas. Ocorre erro na hora de
>>> >>>> executar o programa. O erro é:
>>> >>>>
>>> >>>> error: det(): use of ATLAS or LAPACK needs to be enabled
>>> >>>> terminate called after throwing an instance of 'std::logic_error'
>>> >>>> what():
>>> >>>> Abortado (imagem do núcleo gravada)
>>> >>>>
>>> >>>>
>>> >>>> [ ],
>>> >>>> Pedro Rafael Diniz Marinho.
>>> >>>>
>>> >>>>
>>> >>>> Em 12 de agosto de 2012 22:29, beniltoncarvalho [via R-br]
>>> >>>> <[hidden email]> escreveu:
>>> >>>>> auto correct fail
>>> >>>>>
>>> >>>>> -llapack -lblas
>>> >>>>>
>>> >>>>> Sent from a mobile device
>>> >>>>>
>>> >>>>> On Aug 13, 2012 2:11 AM, "Pedro Rafael" <[hidden email]> wrote:
>>> >>>>>>
>>> >>>>>> Olá Benilton, como vai? O programa que estou testando é bem
>>> >>>>>> simples.
>>> >>>>>> Na verdade a matriz é pequena, 5 por 5. Veja:
>>> >>>>>>
>>> >>>>>> #include<iostream>
>>> >>>>>> #include"armadillo"
>>> >>>>>>
>>> >>>>>> using namespace arma;
>>> >>>>>>
>>> >>>>>> int main()
>>> >>>>>> {
>>> >>>>>> mat A = randu<mat>(5,5);
>>> >>>>>> double x = det(A);
>>> >>>>>> return 0;
>>> >>>>>> }
>>> >>>>>>
>>> >>>>>> Compilei como você me indicou e obtive o seguinte erro.
>>> >>>>>>
>>> >>>>>> /usr/include/armadillo_bits/compiler_setup.hpp:117:6: warning:
>>> >>>>>> #warning "*** Detected GCC 4.7.0 / 4.7.1, which has a regression
>>> >>>>>> (bug)" [-Wcpp]
>>> >>>>>> /usr/include/armadillo_bits/compiler_setup.hpp:118:6: warning:
>>> >>>>>> #warning "*** See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53549
>>> >>>>>> " [-Wcpp]
>>> >>>>>> /usr/include/armadillo_bits/compiler_setup.hpp:119:6: warning:
>>> >>>>>> #warning "*** A partial workaround for the bug has been activated,
>>> >>>>>> " [-Wcpp]
>>> >>>>>> /usr/include/armadillo_bits/compiler_setup.hpp:120:6: warning:
>>> >>>>>> #warning "*** which reduces some functionality in fixed-size
>>> >>>>>> matrices
>>> >>>>>> " [-Wcpp]
>>> >>>>>> /usr/bin/ld: cannot find -lapack
>>> >>>>>> collect2: error: ld returned 1 exit status
>>> >>>>>>
>>> >>>>>>
>>> >>>>>> [ ],
>>> >>>>>> Pedro Rafael Diniz Marinho.
>>> >>>>>> Em 12 de agosto de 2012 22:06, beniltoncarvalho [via R-br]
>>> >>>>>> <[hidden email]> escreveu:
>>> >>>>>>
>>> >>>>>> > Vc precisa linkar p lapack blas
>>> >>>>>> >
>>> >>>>>> > g++ -O2 -lapack -lblas programa.cpp
>>> >>>>>> >
>>> >>>>>> > Obvio, não testado. Adicionalmente, p matriz grande vc deveria
>>> >>>>>> > usar
>>> >>>>>> > log_det.
>>> >>>>>> >
>>> >>>>>> > Sent from a mobile device
>>> >>>>>> >
>>> >>>>>> > On Aug 13, 2012 12:44 AM, "Pedro Rafael" <[hidden email]> wrote:
>>> >>>>>> >>
>>> >>>>>> >> Pessoal estou tendo um problema com a biblioteca armadillo no
>>> >>>>>> >> linux
>>> >>>>>> >> fedora. Quando vou calcular o determinante de uma matriz muito
>>> >>>>>> >> pequena
>>> >>>>>> >> funciona mas quando a minha matriz é grande ocorre o seguinte
>>> >>>>>> >> erro:
>>> >>>>>> >>
>>> >>>>>> >> error: det(): use of ATLAS or LAPACK needs to be enabled
>>> >>>>>> >>
>>> >>>>>> >> Já instalei as bibliotecas cmake, blas-devel, lapack-devel,
>>> >>>>>> >> atlas-devel, boost-devel mas o erro permanece. Alguém já teve
>>> >>>>>> >> isso
>>> >>>>>> >> ou
>>> >>>>>> >> poderia dar uma dica de como corrigir esse problema?
>>> >>>>>> >>
>>> >>>>>> >> Obrigado,
>>> >>>>>> >> Pedro Rafael Diniz Marinho.
>>> >>>>>> >>
>>> >>>>>> >>
>>> >>>>>> >> Em 10 de agosto de 2012 23:58, Pedro Rafael
>>> >>>>>> >> <[hidden email]> escreveu:
>>> >>>>>> >>
>>> >>>>>> >> > Não compreendi os exemplos. Vou dar uma lida maior e buscar
>>> >>>>>> >> > mais
>>> >>>>>> >> > coisas
>>> >>>>>> >> > na net.
>>> >>>>>> >> >
>>> >>>>>> >> > Obrigado,
>>> >>>>>> >> > Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >
>>> >>>>>> >> >
>>> >>>>>> >> > Em 10 de agosto de 2012 23:04, beniltoncarvalho [via R-br]
>>> >>>>>> >> > <[hidden email]> escreveu:
>>> >>>>>> >>
>>> >>>>>> >> >> No básico do basico... Envolva sua função em um extern. Dai
>>> >>>>>> >> >> use
>>> >>>>>> >> >> o
>>> >>>>>> >> >> .Call
>>> >>>>>> >> >>
>>> >>>>>> >> >> Sent from a mobile device
>>> >>>>>> >> >>
>>> >>>>>> >> >> On Aug 11, 2012 2:42 AM, "Pedro Rafael" <[hidden email]>
>>> >>>>>> >> >> wrote:
>>> >>>>>> >> >>>
>>> >>>>>> >> >>> Interessante. Com o comando RcppArmadillo.package.skeleton é
>>> >>>>>> >> >>> possível
>>> >>>>>> >> >>> criar a estrutura de diretórios de um pacote R. Digamos que
>>> >>>>>> >> >>> eu
>>> >>>>>> >> >>> tenha
>>> >>>>>> >> >>> um código C++ e queria arrumar ele para fazer um pacote para
>>> >>>>>> >> >>> o
>>> >>>>>> >> >>> R.
>>> >>>>>> >> >>> Eu
>>> >>>>>> >> >>> queria entender como se da essa comunicação. Só a filosofia
>>> >>>>>> >> >>> mesmo.
>>> >>>>>> >> >>> Eu
>>> >>>>>> >> >>> entendo como criar um pacote do R utilizando o sistema de
>>> >>>>>> >> >>> orientação à
>>> >>>>>> >> >>> objeto S3 e sei que existe outras como S4 e R5. O que não
>>> >>>>>> >> >>> consigo
>>> >>>>>> >> >>> entender bem é como comunicar o código C/C++ com o R e como
>>> >>>>>> >> >>> se
>>> >>>>>> >> >>> dá a
>>> >>>>>> >> >>> comunicação desses códigos (C/C++) com o R. Vi que posso
>>> >>>>>> >> >>> chamar
>>> >>>>>> >> >>> códigos do R para o C++ mas acho que o mais interessante é o
>>> >>>>>> >> >>> contrário. Como chamar um código otimizado de C++ para R e
>>> >>>>>> >> >>> criar
>>> >>>>>> >> >>> um
>>> >>>>>> >> >>> pacote caso seja conveniente. Alguém poderia me dar um
>>> >>>>>> >> >>> exemplo
>>> >>>>>> >> >>> com
>>> >>>>>> >> >>> uma
>>> >>>>>> >> >>> função bem simplória só para entender por alto como
>>> >>>>>> >> >>> funciona?
>>> >>>>>> >> >>>
>>> >>>>>> >> >>> Obrigado,
>>> >>>>>> >> >>> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>>
>>> >>>>>> >> >>>
>>> >>>>>> >> >>> Em 10 de agosto de 2012 22:23, beniltoncarvalho [via R-br]
>>> >>>>>> >> >>> <[hidden email]> escreveu:
>>> >>>>>> >> >>>
>>> >>>>>> >> >>> > Sim. Mas antes de qualquer coisa, veja o pacote
>>> >>>>>> >> >>> > RcppArmadillo
>>> >>>>>> >> >>> > e
>>> >>>>>> >> >>> > os
>>> >>>>>> >> >>> > documentos de ajuda associados. b
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> > 2012/8/11 Pedro Rafael <[hidden email]>:
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >> Uma última dúvida. É fácil integrar códigos C++ com o R?
>>> >>>>>> >> >>> >> Utilizei
>>> >>>>>> >> >>> >> as
>>> >>>>>> >> >>> >> funções .C() e .Call() para chamar comandos em C para R.
>>> >>>>>> >> >>> >> Nunca
>>> >>>>>> >> >>> >> tentei
>>> >>>>>> >> >>> >> utilizando C++. A construção de pacotes R feitos
>>> >>>>>> >> >>> >> utilizando
>>> >>>>>> >> >>> >> funções
>>> >>>>>> >> >>> >> escritas em C++ também é tranquila?
>>> >>>>>> >> >>> >>
>>> >>>>>> >> >>> >>
>>> >>>>>> >> >>> >> Obrigado,
>>> >>>>>> >> >>> >> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>
>>> >>>>>> >> >>> >>
>>> >>>>>> >> >>> >> Em 10 de agosto de 2012 22:04, Pedro Rafael
>>> >>>>>> >> >>> >> <[hidden email]> escreveu:
>>> >>>>>> >> >>> >>> Que legal Benilton, vou olhar bem esse pacote. Muito
>>> >>>>>> >> >>> >>> obrigado
>>> >>>>>> >> >>> >>> pelas
>>> >>>>>> >> >>> >>> informações. Vou brincar um pouco com esse pacote.
>>> >>>>>> >> >>> >>> Procurei na
>>> >>>>>> >> >>> >>> web
>>> >>>>>> >> >>> >>> outros pacotes de álgebra linear para C++ mas me parece
>>> >>>>>> >> >>> >>> que
>>> >>>>>> >> >>> >>> esse é
>>> >>>>>> >> >>> >>> o
>>> >>>>>> >> >>> >>> pacote livre mais completo.
>>> >>>>>> >> >>> >>> [ ],
>>> >>>>>> >> >>> >>> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>>
>>> >>>>>> >> >>> >>>
>>> >>>>>> >> >>> >>> Em 10 de agosto de 2012 21:31, beniltoncarvalho [via
>>> >>>>>> >> >>> >>> R-br]
>>> >>>>>> >> >>> >>> <[hidden email]> escreveu:
>>> >>>>>> >> >>> >>>> Se vc gostou do Armadillo, divirta-se com o pacote
>>> >>>>>> >> >>> >>>> RcppArmadillo.
>>> >>>>>> >> >>> >>>> b
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>> 2012/8/11 Pedro Rafael <[hidden email]>:
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>> Obrigado Prof. Paulo pela informação, me ajudou
>>> >>>>>> >> >>> >>>>> bastante.
>>> >>>>>> >> >>> >>>>> Eu
>>> >>>>>> >> >>> >>>>> gostei
>>> >>>>>> >> >>> >>>>> muito Benilton da biblioteca de álgebra linear
>>> >>>>>> >> >>> >>>>> "armadillo".
>>> >>>>>> >> >>> >>>>> Muito
>>> >>>>>> >> >>> >>>>> mais
>>> >>>>>> >> >>> >>>>> fácil que a GSL. Eu acho desorganizado os códigos C. O
>>> >>>>>> >> >>> >>>>> problema
>>> >>>>>> >> >>> >>>>> que
>>> >>>>>> >> >>> >>>>> quando escrevo algum código matemático em C++ sempre
>>> >>>>>> >> >>> >>>>> tem
>>> >>>>>> >> >>> >>>>> uma
>>> >>>>>> >> >>> >>>>> estrutura
>>> >>>>>> >> >>> >>>>> procedural, deve ser o vício que tenho do C. Acabo
>>> >>>>>> >> >>> >>>>> usando
>>> >>>>>> >> >>> >>>>> quase
>>> >>>>>> >> >>> >>>>> nada
>>> >>>>>> >> >>> >>>>> de Classes, Heranças, Polimorfismo, etc. Contudo, acho
>>> >>>>>> >> >>> >>>>> interessante
>>> >>>>>> >> >>> >>>>> a
>>> >>>>>> >> >>> >>>>> facilidade de se trabalhar com vetores, matrizes e
>>> >>>>>> >> >>> >>>>> alocação
>>> >>>>>> >> >>> >>>>> dinâmica
>>> >>>>>> >> >>> >>>>> utilizando C++.
>>> >>>>>> >> >>> >>>>> [ ],
>>> >>>>>> >> >>> >>>>> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>>>>
>>> >>>>>> >> >>> >>>>>
>>> >>>>>> >> >>> >>>>> Em 10 de agosto de 2012 20:28, beniltoncarvalho [via
>>> >>>>>> >> >>> >>>>> R-br]
>>> >>>>>> >> >>> >>>>> <[hidden email]> escreveu:
>>> >>>>>> >> >>> >>>>>> Pedro,
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> Há muito deixei de procurar 'a linguagem mais
>>> >>>>>> >> >>> >>>>>> <escolha o
>>> >>>>>> >> >>> >>>>>> adjetivo>
>>> >>>>>> >> >>> >>>>>> para <escolha a tarefa>'. Fico contente em usar
>>> >>>>>> >> >>> >>>>>> qualquer
>>> >>>>>> >> >>> >>>>>> linguagem
>>> >>>>>> >> >>> >>>>>> que
>>> >>>>>> >> >>> >>>>>> se mostre util e nao me force a reinventar a roda.
>>> >>>>>> >> >>> >>>>>> Dito
>>> >>>>>> >> >>> >>>>>> isso,
>>> >>>>>> >> >>> >>>>>> nao
>>> >>>>>> >> >>> >>>>>> vejo
>>> >>>>>> >> >>> >>>>>> la essas diferencas entre C ou C++. E' obvio que
>>> >>>>>> >> >>> >>>>>> algum
>>> >>>>>> >> >>> >>>>>> especialista
>>> >>>>>> >> >>> >>>>>> em
>>> >>>>>> >> >>> >>>>>> alguma delas encontrara' inumeros casos que servem de
>>> >>>>>> >> >>> >>>>>> contra-exemplo;
>>> >>>>>> >> >>> >>>>>> mas enqto ele faz isso, eu sigo adiante resolvendo
>>> >>>>>> >> >>> >>>>>> outros
>>> >>>>>> >> >>> >>>>>> problemas.
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> b
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> 2012/8/10 Paulo Justiniano <[hidden email]>:
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>> Pedro
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> quando se diz em evitar inverter matrizes é porque
>>> >>>>>> >> >>> >>>>>>> muitas
>>> >>>>>> >> >>> >>>>>>> contas
>>> >>>>>> >> >>> >>>>>>> podem
>>> >>>>>> >> >>> >>>>>>> ser
>>> >>>>>> >> >>> >>>>>>> feitas sem a inversao explícita
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> Por exemplo, a conta
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> X'V^{-1}X
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> pode ser feita evitando inversao a partir da
>>> >>>>>> >> >>> >>>>>>> cholesky
>>> >>>>>> >> >>> >>>>>>> de V
>>> >>>>>> >> >>> >>>>>>> que pode ser aproveitada de calculos anteriores uma
>>> >>>>>> >> >>> >>>>>>> vez
>>> >>>>>> >> >>> >>>>>>> que
>>> >>>>>> >> >>> >>>>>>> já
>>> >>>>>> >> >>> >>>>>>> deve
>>> >>>>>> >> >>> >>>>>>> ter
>>> >>>>>> >> >>> >>>>>>> sido
>>> >>>>>> >> >>> >>>>>>> calculada antes para obter as estimativas
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> No exemplo
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> cV <- chol(V)
>>> >>>>>> >> >>> >>>>>>> crossprod(backsolve(cV, X, transpose=T))
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> isto é ***muito*** mais rapido (compare com
>>> >>>>>> >> >>> >>>>>>> system.time())
>>> >>>>>> >> >>> >>>>>>> do que
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> t(X) %*% solve(V) %*% X
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> On Thu, 9 Aug 2012, Pedro Rafael wrote:
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>> Com respeito a evitar de trabalhar com inversas de
>>> >>>>>> >> >>> >>>>>>>> matrizes é
>>> >>>>>> >> >>> >>>>>>>> fato
>>> >>>>>> >> >>> >>>>>>>> mas
>>> >>>>>> >> >>> >>>>>>>> infelizmente tenho que trabalhar. Para trabalhar
>>> >>>>>> >> >>> >>>>>>>> com
>>> >>>>>> >> >>> >>>>>>>> modelos
>>> >>>>>> >> >>> >>>>>>>> de
>>> >>>>>> >> >>> >>>>>>>> regressão heterocedásticos vou precisar de cálculo
>>> >>>>>> >> >>> >>>>>>>> de
>>> >>>>>> >> >>> >>>>>>>> inversas de
>>> >>>>>> >> >>> >>>>>>>> matrizes para o cálculo da estrutura de covariância
>>> >>>>>> >> >>> >>>>>>>> de
>>> >>>>>> >> >>> >>>>>>>> tal
>>> >>>>>> >> >>> >>>>>>>> estimador.
>>> >>>>>> >> >>> >>>>>>>> [ ],
>>> >>>>>> >> >>> >>>>>>>> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>
>>> >>>>>> >> >>> >>>>>>>> Em 9 de agosto de 2012 17:02, Pedro Rafael
>>> >>>>>> >> >>> >>>>>>>> <[hidden email]> escreveu:
>>> >>>>>> >> >>> >>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>> Verdade Benilton inverter matrizes requer um custo
>>> >>>>>> >> >>> >>>>>>>>> computacional
>>> >>>>>> >> >>> >>>>>>>>> bastante elevado. Atualmente programo em C e
>>> >>>>>> >> >>> >>>>>>>>> programei
>>> >>>>>> >> >>> >>>>>>>>> muito
>>> >>>>>> >> >>> >>>>>>>>> pouco
>>> >>>>>> >> >>> >>>>>>>>> em
>>> >>>>>> >> >>> >>>>>>>>> C++ por curiosidade. Você acreditar que códigos em
>>> >>>>>> >> >>> >>>>>>>>> C++
>>> >>>>>> >> >>> >>>>>>>>> perdem
>>> >>>>>> >> >>> >>>>>>>>> muito
>>> >>>>>> >> >>> >>>>>>>>> desempenho em comparação à C considerando que a
>>> >>>>>> >> >>> >>>>>>>>> programação
>>> >>>>>> >> >>> >>>>>>>>> em
>>> >>>>>> >> >>> >>>>>>>>> ambas
>>> >>>>>> >> >>> >>>>>>>>> as linguagens sejam eficientes? Você tem boas
>>> >>>>>> >> >>> >>>>>>>>> experiências
>>> >>>>>> >> >>> >>>>>>>>> na
>>> >>>>>> >> >>> >>>>>>>>> utilização de C++ para programação estatística e
>>> >>>>>> >> >>> >>>>>>>>> para
>>> >>>>>> >> >>> >>>>>>>>> uso
>>> >>>>>> >> >>> >>>>>>>>> em
>>> >>>>>> >> >>> >>>>>>>>> simulações?
>>> >>>>>> >> >>> >>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>> Gostei bastante dessa biblioteca que você me
>>> >>>>>> >> >>> >>>>>>>>> passou,
>>> >>>>>> >> >>> >>>>>>>>> muito
>>> >>>>>> >> >>> >>>>>>>>> interessante. Não conhecia. A única biblioteca
>>> >>>>>> >> >>> >>>>>>>>> para
>>> >>>>>> >> >>> >>>>>>>>> álgebra
>>> >>>>>> >> >>> >>>>>>>>> linear
>>> >>>>>> >> >>> >>>>>>>>> livre que eu conhecia era a GSL.
>>> >>>>>> >> >>> >>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>> [ ],
>>> >>>>>> >> >>> >>>>>>>>> Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>> Em 9 de agosto de 2012 15:58, beniltoncarvalho
>>> >>>>>> >> >>> >>>>>>>>> [via
>>> >>>>>> >> >>> >>>>>>>>> R-br]
>>> >>>>>> >> >>> >>>>>>>>> <[hidden email]> escreveu:
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> Eu ainda sou do time "se vc esta' invertendo
>>> >>>>>> >> >>> >>>>>>>>>> matriz,
>>> >>>>>> >> >>> >>>>>>>>>> entao
>>> >>>>>> >> >>> >>>>>>>>>> vc
>>> >>>>>> >> >>> >>>>>>>>>> esta'
>>> >>>>>> >> >>> >>>>>>>>>> fazendo algo errado"...
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> Em C++, vc vai querer olhar o que Armadillo tem a
>>> >>>>>> >> >>> >>>>>>>>>> oferecer.
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> b
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> 2012/8/9 Pedro Rafael <[hidden email]>:
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>> Pessoal gostaria de saber qual uma boa
>>> >>>>>> >> >>> >>>>>>>>>>> biblioteca
>>> >>>>>> >> >>> >>>>>>>>>>> livre
>>> >>>>>> >> >>> >>>>>>>>>>> de
>>> >>>>>> >> >>> >>>>>>>>>>> C
>>> >>>>>> >> >>> >>>>>>>>>>> para
>>> >>>>>> >> >>> >>>>>>>>>>> trabalhar com operações matriciais como inversas
>>> >>>>>> >> >>> >>>>>>>>>>> e
>>> >>>>>> >> >>> >>>>>>>>>>> produtos de
>>> >>>>>> >> >>> >>>>>>>>>>> matrizes. Qualquer dica será interessante.
>>> >>>>>> >> >>> >>>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>> [ ] Pedro Rafael Diniz Marinho.
>>> >>>>>> >> >>> >>>>>>>>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>>>>>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>>>>>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>>>>>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>>>>>>>> (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> >>>>>>>>>>> e
>>> >>>>>> >> >>> >>>>>>>>>>> forneça
>>> >>>>>> >> >>> >>>>>>>>>>> código mínimo reproduzível.
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>>>>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>>>>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>>>>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>>>>>>> (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> >>>>>>>>>> e
>>> >>>>>> >> >>> >>>>>>>>>> forneça
>>> >>>>>> >> >>> >>>>>>>>>> código
>>> >>>>>> >> >>> >>>>>>>>>> mínimo reproduzível.
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> ________________________________
>>> >>>>>> >> >>> >>>>>>>>>> If you reply to this email, your message will be
>>> >>>>>> >> >>> >>>>>>>>>> added
>>> >>>>>> >> >>> >>>>>>>>>> to
>>> >>>>>> >> >>> >>>>>>>>>> the
>>> >>>>>> >> >>> >>>>>>>>>> discussion
>>> >>>>>> >> >>> >>>>>>>>>> below:
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>>> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655810.html
>>> >>>>>> >> >>> >>>>>>>>>> To unsubscribe from R-br, click here.
>>> >>>>>> >> >>> >>>>>>>>>> NAML
>>> >>>>>> >> >>> >>>>>>>>
>>> >>>>>> >> >>> >>>>>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>>>>
>>> >>>>>> >> >>> >>>>>>>>
>>> >>>>>> >> >>> >>>>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>>>>> (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> >>>>>>>> e
>>> >>>>>> >> >>> >>>>>>>> forneça
>>> >>>>>> >> >>> >>>>>>>> código mínimo reproduzível.
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>>
>>> >>>>>> >> >>> >>>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>>>> (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> >>>>>>> e
>>> >>>>>> >> >>> >>>>>>> forneça
>>> >>>>>> >> >>> >>>>>>> código
>>> >>>>>> >> >>> >>>>>>> mínimo reproduzível.
>>> >>>>>> >> >>> >>>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>>> (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> >>> >>>>>> forneça
>>> >>>>>> >> >>> >>>>>> código
>>> >>>>>> >> >>> >>>>>> mínimo reproduzível.
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> ________________________________
>>> >>>>>> >> >>> >>>>>> If you reply to this email, your message will be
>>> >>>>>> >> >>> >>>>>> added
>>> >>>>>> >> >>> >>>>>> to
>>> >>>>>> >> >>> >>>>>> the
>>> >>>>>> >> >>> >>>>>> discussion
>>> >>>>>> >> >>> >>>>>> below:
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>>
>>> >>>>>> >> >>> >>>>>> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655826.html
>>> >>>>>> >> >>> >>>>>> To unsubscribe from R-br, click here.
>>> >>>>>> >> >>> >>>>>> NAML
>>> >>>>>> >> >>> >>>>> _______________________________________________
>>> >>>>>> >> >>> >>>>> R-br mailing list
>>> >>>>>> >> >>> >>>>> [hidden email]
>>> >>>>>> >> >>> >>>>>
>>> >>>>>> >> >>> >>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>>> (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> >>> >>>>> forneça
>>> >>>>>> >> >>> >>>>> código mínimo reproduzível.
>>> >>>>>> >> >>> >>>> _______________________________________________
>>> >>>>>> >> >>> >>>> R-br mailing list
>>> >>>>>> >> >>> >>>> [hidden email]
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >>>> Leia o guia de postagem
>>> >>>>>> >> >>> >>>> (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> >>>> e
>>> >>>>>> >> >>> >>>> forneça
>>> >>>>>> >> >>> >>>> código
>>> >>>>>> >> >>> >>>> mínimo reproduzível.
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>> ________________________________
>>> >>>>>> >> >>> >>>> If you reply to this email, your message will be added
>>> >>>>>> >> >>> >>>> to
>>> >>>>>> >> >>> >>>> the
>>> >>>>>> >> >>> >>>> discussion
>>> >>>>>> >> >>> >>>> below:
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>>
>>> >>>>>> >> >>> >>>> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655830.html
>>> >>>>>> >> >>> >>>> To unsubscribe from R-br, click here.
>>> >>>>>> >> >>> >>>> NAML
>>> >>>>>> >> >>> >> _______________________________________________
>>> >>>>>> >> >>> >> R-br mailing list
>>> >>>>>> >> >>> >> [hidden email]
>>> >>>>>> >> >>> >> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> >> Leia o guia de postagem
>>> >>>>>> >> >>> >> (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> >>> >> forneça
>>> >>>>>> >> >>> >> código mínimo reproduzível.
>>> >>>>>> >> >>> > _______________________________________________
>>> >>>>>> >> >>> > R-br mailing list
>>> >>>>>> >> >>> > [hidden email]
>>> >>>>>> >> >>> > https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> > Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia)
>>> >>>>>> >> >>> > e
>>> >>>>>> >> >>> > forneça
>>> >>>>>> >> >>> > código
>>> >>>>>> >> >>> > mínimo reproduzível.
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> > ________________________________
>>> >>>>>> >> >>> > If you reply to this email, your message will be added to
>>> >>>>>> >> >>> > the
>>> >>>>>> >> >>> > discussion
>>> >>>>>> >> >>> > below:
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> >
>>> >>>>>> >> >>> > http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655833.html
>>> >>>>>> >> >>> > To unsubscribe from R-br, click here.
>>> >>>>>> >> >>> > NAML
>>> >>>>>> >> >>> _______________________________________________
>>> >>>>>> >> >>> R-br mailing list
>>> >>>>>> >> >>> [hidden email]
>>> >>>>>> >> >>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >>> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> >>> forneça
>>> >>>>>> >> >>> código mínimo reproduzível.
>>> >>>>>> >> >>
>>> >>>>>> >> >>
>>> >>>>>> >> >> _______________________________________________
>>> >>>>>> >> >> R-br mailing list
>>> >>>>>> >> >> [hidden email]
>>> >>>>>> >> >> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> >> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> >> forneça
>>> >>>>>> >> >> código
>>> >>>>>> >> >> mínimo reproduzível.
>>> >>>>>> >> >>
>>> >>>>>> >> >> ________________________________
>>> >>>>>> >> >> If you reply to this email, your message will be added to the
>>> >>>>>> >> >> discussion
>>> >>>>>> >> >> below:
>>> >>>>>> >> >>
>>> >>>>>> >> >>
>>> >>>>>> >> >>
>>> >>>>>> >> >>
>>> >>>>>> >> >> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655836.html
>>> >>>>>> >> >> To unsubscribe from R-br, click here.
>>> >>>>>> >> >> NAML
>>> >>>>>> >> _______________________________________________
>>> >>>>>> >> R-br mailing list
>>> >>>>>> >> [hidden email]
>>> >>>>>> >> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> >> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> >> forneça
>>> >>>>>> >> código mínimo reproduzível.
>>> >>>>>> >
>>> >>>>>> >
>>> >>>>>> > _______________________________________________
>>> >>>>>> > R-br mailing list
>>> >>>>>> > [hidden email]
>>> >>>>>> > https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> > Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> > forneça
>>> >>>>>> > código
>>> >>>>>> > mínimo reproduzível.
>>> >>>>>> >
>>> >>>>>> > ________________________________
>>> >>>>>> > If you reply to this email, your message will be added to the
>>> >>>>>> > discussion
>>> >>>>>> > below:
>>> >>>>>> >
>>> >>>>>> >
>>> >>>>>> >
>>> >>>>>> > http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655841.html
>>> >>>>>> > To unsubscribe from R-br, click here.
>>> >>>>>> > NAML
>>> >>>>>> _______________________________________________
>>> >>>>>> R-br mailing list
>>> >>>>>> [hidden email]
>>> >>>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>>> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e
>>> >>>>>> forneça
>>> >>>>>> código mínimo reproduzível.
>>> >>>>>
>>> >>>>>
>>> >>>>> _______________________________________________
>>> >>>>> R-br mailing list
>>> >>>>> [hidden email]
>>> >>>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >>>>> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e forneça
>>> >>>>> código
>>> >>>>> mínimo reproduzível.
>>> >>>>>
>>> >>>>> ________________________________
>>> >>>>> If you reply to this email, your message will be added to the
>>> >>>>> discussion
>>> >>>>> below:
>>> >>>>>
>>> >>>>>
>>> >>>>> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655843.html
>>> >>>>> To unsubscribe from R-br, click here.
>>> >>>>> NAML
>>> >> _______________________________________________
>>> >> R-br mailing list
>>> >> [hidden email]
>>> >> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> >> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e forneça
>>> >> código mínimo reproduzível.
>>> > _______________________________________________
>>> > R-br mailing list
>>> > [hidden email]
>>> > https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> > Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e forneça
>>> > código
>>> > mínimo reproduzível.
>>> >
>>> >
>>> > ________________________________
>>> > If you reply to this email, your message will be added to the discussion
>>> > below:
>>> >
>>> > http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655847.html
>>> > To unsubscribe from R-br, click here.
>>> > NAML
>>> _______________________________________________
>>> R-br mailing list
>>> [hidden email]
>>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>>> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e forneça
>>> código mínimo reproduzível.
>>
>>
>> _______________________________________________
>> R-br mailing list
>> [hidden email]
>> https://listas.inf.ufpr.br/cgi-bin/mailman/listinfo/r-br
>> Leia o guia de postagem (http://www.leg.ufpr.br/r-br-guia) e forneça código
>> mínimo reproduzível.
>>
>> ________________________________
>> If you reply to this email, your message will be added to the discussion
>> below:
>> http://r-br.2285057.n4.nabble.com/R-br-OFF-Biblioteca-C-para-matrizes-tp4655808p4655857.html
>> To unsubscribe from R-br, click here.
>> NAML
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