[R-br] [OFF] Biblioteca C para matrizes.
Pedro Rafael
pedro.rafael.marinho em gmail.com
Segunda Agosto 13 16:09:04 BRT 2012
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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