C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Is there an algebraic vector class?          C++Talk.NET Forum Index -> C++ Language (Moderated) View previous topic :: View next topic   Author Message Andreas Harnack Guest Posted: Mon Sep 13, 2004 8:41 pm    Post subject: Is there an algebraic vector class? Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? Such a vector would typically have an arbitrary but fixed dimension, hence no need for insert/remove operations, and should offer all operation defined in vector space (sum, scalar factor, scalar product etc.) Note that such a vector would be fundamentally different from the one implemented in the std::vector class. Andreas [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Falk Tannhäuser Guest Posted: Tue Sep 14, 2004 11:59 am    Post subject: Re: Is there an algebraic vector class? Have you looked at std::valarray? Falk [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Hendrik Belitz Guest Posted: Tue Sep 14, 2004 12:03 pm    Post subject: Re: Is there an algebraic vector class? Andreas Harnack wrote: Quote: Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? Such a vector would typically have an arbitrary but fixed dimension, hence no need for insert/remove operations, and should offer all operation defined in vector space (sum, scalar factor, scalar product etc.) Note that such a vector would be fundamentally different from the one implemented in the std::vector class. Take a look at http://oonumerics.org/blitz and also at http://www.codesourcery.com/pooma -- To get my real email adress, remove the two onkas -- Hendrik Belitz - Abort, Retry, Fthagn? - [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Gabriel Dos Reis Guest Posted: Tue Sep 14, 2004 12:15 pm    Post subject: Re: Is there an algebraic vector class? "Andreas Harnack" <andreas_harnack (AT) web (DOT) de> writes: Quote: Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? Such a vector would typically have an arbitrary but fixed dimension, hence no need for insert/remove operations, and should offer all operation defined in vector space (sum, scalar factor, scalar product etc.) Note that such a vector would be fundamentally different from the one implemented in the std::vector class. You have std::valarray, as an approximation. See TC++PL3 for introduction. -- Gabriel Dos Reis [email]gdr (AT) integrable-solutions (DOT) net[/email] [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Malte Clasen Guest Posted: Tue Sep 14, 2004 12:22 pm    Post subject: Re: Is there an algebraic vector class? Andreas Harnack wrote: Quote: Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? There's a vector class in the Boost ublas library: http://www.boost.org/libs/numeric/ublas/doc/vector.htm Malte [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Nicola Musatti Guest Posted: Tue Sep 14, 2004 11:02 pm    Post subject: Re: Is there an algebraic vector class? "Andreas Harnack" <andreas_harnack (AT) web (DOT) de> wrote Quote: Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? The Boost.uBlas library might fit your requirements: http://www.boost.org/libs/numeric/ublas/doc/index.htm Cheers, Nicola Musatti [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Paul Evans Guest Posted: Tue Sep 14, 2004 11:05 pm    Post subject: Re: Is there an algebraic vector class? You want the Boost Basic Linear Algebra Library (uBLAS). Check out: http://www.boost.org/libs/numeric/ublas/doc/index.htm [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top David Fisher Guest Posted: Wed Sep 15, 2004 9:57 am    Post subject: Re: Is there an algebraic vector class? "Hendrik Belitz" wrote: Quote: Is anybody aware of an implementation of a vector class ... [snip] Quote: Take a look at http://oonumerics.org/blitz Hope this isn't off topic, but whenever I have tried that address (in the last few months) it has failed ... Google isn't turning up many alternative sites either. Do you know if it has moved ? (Or is this just a local problem ?) Thanks, David Fisher Sydney, Australia [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Francis Glassborow Guest Posted: Wed Sep 15, 2004 6:36 pm    Post subject: Re: Is there an algebraic vector class? In article <gNM1d.848$pl.27044 (AT) nasal (DOT) pacific.net.au>, David Fisher <david (AT) hsa (DOT) com.au> writes Quote: "Hendrik Belitz" wrote: Is anybody aware of an implementation of a vector class ... [snip] Take a look at http://oonumerics.org/blitz Hope this isn't off topic, but whenever I have tried that address (in the last few months) it has failed ... Google isn't turning up many alternative sites either. Do you know if it has moved ? (Or is this just a local problem ?) Must be some local problem because I have no difficulty with accessing it. -- Francis Glassborow ACCU Author of 'You Can Do It!' see http://www.spellen.org/youcandoit For project ideas and contributions: http://www.spellen.org/youcandoit/projects [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Hyman Rosen Guest Posted: Wed Sep 15, 2004 7:27 pm    Post subject: Re: Is there an algebraic vector class? David Fisher wrote: Quote: http://oonumerics.org/blitz Hope this isn't off topic, but whenever I have tried that address (in the last few months) it has failed I just tried it, and it worked for me. [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Andreas Harnack Guest Posted: Wed Sep 15, 2004 11:58 pm    Post subject: Re: Is there an algebraic vector class? Thanks for your feedback; some suggestions I'd already checked, others were new to me. However, non of them represented what I have in mind. In particular I don't think that an algebraic vector can be a container. It could be implemented using a container but that would be a private detail. I think I'll write this up in a separate article. Andreas "Andreas Harnack" <andreas_harnack (AT) web (DOT) de> wrote Quote: Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? Such a vector would typically have an arbitrary but fixed dimension, hence no need for insert/remove operations, and should offer all operation defined in vector space (sum, scalar factor, scalar product etc.) Note that such a vector would be fundamentally different from the one implemented in the std::vector class. Andreas [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. First time posters: Do this! ] Back to top Patrick Kowalzick Guest Posted: Fri Sep 17, 2004 3:03 am    Post subject: Re: Is there an algebraic vector class? Hi Andreas, I dont know if this helps: Theres a fixed size array in boost, which is simply called - array. But there are no algebraic routines implemented. As well there is nothing virtual inside, so take care with inheritance. boost.uBLAS has a bounded_vector, what is similar at a first glance. But it is quite nice integrated in the library so all implemented vector and matrix operations can be used. Me, myself I cheat a little bit: I inherit from the uBLAS bounded_vector an own type, more exact several types. Points, Lines, Planes and so on....I need just to introduce the ctors, dtor and assignment operators. Like this I can easily use the power of uBLAS with my own classes. Regards, Patrick "Andreas Harnack" <andreas_harnack (AT) web (DOT) de> schrieb im Newsbeitrag news:7m32d.10812$Iz5.4673 (AT) news (DOT) cpqcorp.net... Quote: Thanks for your feedback; some suggestions I'd already checked, others were new to me. However, non of them represented what I have in mind. In particular I don't think that an algebraic vector can be a container. It could be implemented using a container but that would be a private detail. I think I'll write this up in a separate article. Andreas "Andreas Harnack" <andreas_harnack (AT) web (DOT) de> wrote in message news:K1k1d.10466$It2.9572 (AT) news (DOT) cpqcorp.net... Is anybody aware of an implementation respectively discussion of a vector class based on the vector concept typically used in linear algebra respectively Euclidian geometry? Such a vector would typically have an arbitrary but fixed dimension, hence no need for insert/remove operations, and should offer all operation defined in vector space (sum, scalar factor, scalar product etc.) Note that such a vector would be fundamentally different from the one implemented in the std::vector class. Andreas [ See http://www.gotw.ca/resources/clcm.htm for info about ] [ comp.lang.c++.moderated. 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