Screenshot instructions:
Windows
Mac
Red Hat Linux
Ubuntu
Click URL instructions:
Rightclick on ad, choose "Copy Link", then paste here →
(This may not be possible with some types of ads)
From: Aureliano Calvo <aurelianocalvo@ya...>  20040927 15:28:45

Hi! I want to use the tabulatematrix function defined on matrix.ss on the subproject schemathics. Because tabulatematrix is a private definition, I've added it to the provide clause. But I'm unable to use it. The error I see (in DrScheme) is "expand: unbound variable in module in: tabulatematrix". The previously defined functions work just fine. I'm using drScheme version 2.08 under Windows 98 and I've modified the PLTCOLLECTS enviroment variable to point to the modified version of schematics. Thank you very much for your time, Aureliano. Correo Yahoo!  6 MB, tecnología antispam ¡gratis! Suscribite ya http://correo.yahoo.com.ar/ 
From: <jensaxel@so...>  20040927 16:26:22

Aureliano Calvo wrote: >I want to use the tabulatematrix function defined on >matrix.ss on the subproject schemathics. Because >tabulatematrix is a private definition, I've added it >to the provide clause. But I'm unable to use it. The >error I see (in DrScheme) is "expand: unbound variable >in module in: tabulatematrix". The previously defined >functions work just fine.=20 > =20 > I am guessing here: Perhaps DrScheme is using the old .zofile? Search for matrix.zo and delete it, if you find one in a subdirectory of Schemathics. =20 Jens Axel S=F8gaard 
From: Noel Welsh <noelwelsh@ya...>  20040929 14:01:33

 Aureliano Calvo <aurelianocalvo@...> wrote: > I want to use the tabulatematrix function defined on > matrix.ss on the subproject schemathics. Because > tabulatematrix is a private definition, I've added it > to the provide clause. But I'm unable to use it. Have you gotten any further with this problem? I just modified matrix.ss as you have done so above and it works fine for me. Noel ===== Email: noelwelsh <at> yahoo <dot> com AIM: noelhwelsh __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 
From: Aureliano Calvo <aurelianocalvo@ya...>  20040929 22:12:34

I've looked after the compiled files but I couldn't find them. So I've just reinstalled DrScheme and it worked. Now I can continue my project of implementing the simplex algorithm. I already have implementated matrix multiplication (I'm going slow because I'm learning scheme, and the algorithm, on my way). How can I submit it? I also implemented a coupple of tests using SchemeUnit. > > I want to use the tabulatematrix function defined > on > > matrix.ss on the subproject schemathics. Because > > tabulatematrix is a private definition, I've > added it > > to the provide clause. But I'm unable to use it. > > Have you gotten any further with this problem? I > just > modified matrix.ss as you have done so above and it > works > fine for me. > Correo Yahoo!  6 MB, tecnología antispam ¡gratis! Suscribite ya http://correo.yahoo.com.ar/ 
From: Noel Welsh <noelwelsh@ya...>  20041006 16:28:59

 Aureliano Calvo <aurelianocalvo@...> wrote: > Now I can continue my project of implementing the > simplex algorithm. I already have implementated matrix > multiplication (I'm going slow because I'm learning > scheme, and the algorithm, on my way). How can I > submit it? I also implemented a coupple of tests using > SchemeUnit. Sorry about the delay in getting back to you  it is the beginning of term and I've been very busy. If you have patches just email them to me. Alternatively you can become a Schematics developer and make the changes yourself. To become a developer send me your Sourceforge login. The Schemathics collection has been neglected for a long time. The "Science Collection" that has recently been discussed on the pltscheme mailing list looks like a very good replacement. AFAIK the code hasn't been released yet, but the documentation is online: http://www.ccs.neu.edu/home/matthias/Tmp/science.pdf You might want to check it out if you want to do lots of numerical computation in PLT Scheme. Cheers, Noel ===== Email: noelwelsh <at> yahoo <dot> com AIM: noelhwelsh __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com 
From: Aureliano Calvo <aurelianocalvo@ya...>  20041006 18:12:13

I've just checked out the pdf referred in your mail and it doesn't include any matrix operations. So I think that I'll stick with schemathics. >>Now I can continue my project of implementing the >>simplex algorithm. I already have implementated matrix >>multiplication (I'm going slow because I'm learning >>scheme, and the algorithm, on my way). How can I >>submit it? I also implemented a coupple of tests using >>SchemeUnit. >> >> > >Sorry about the delay in getting back to you  it is the >beginning of term and I've been very busy. If you have >patches just email them to me. Alternatively you can >become a Schematics developer and make the changes >yourself. To become a developer send me your Sourceforge >login. > >The Schemathics collection has been neglected for a long >time. The "Science Collection" that has recently been >discussed on the pltscheme mailing list looks like a very >good replacement. AFAIK the code hasn't been released yet, >but the documentation is online: > > http://www.ccs.neu.edu/home/matthias/Tmp/science.pdf > >You might want to check it out if you want to do lots of >numerical computation in PLT Scheme. > >Cheers, >Noel > >===== >Email: noelwelsh <at> yahoo <dot> com >AIM: noelhwelsh > > > 
From: <jensaxel@so...>  20041006 20:39:16

Noel Welsh wrote: > <>The Schemathics collection has been neglected for a long > time.=20 <>For the mathrepl "project", I implemented some more operations from linear algebra on top of the Schemathics matrix library. From <http://www.jasoegaard.dk/doc.txt>;: CHANGES (1.0 to 1.01)   "integration.scm" integration now uses Romberg integration  "polynomialroots.scm" Laguerre's root finding method finds all roots of a polynomial. Usage: (roots listofcoefs)  "linearalgbra.scm" o rowreduce, rowechelonform, reducedrowechelonform o inverse, linearsolve o basis o (det matrix) now handles arbitrary sizes o identitymatrix, diagonalmatrix, trace o rowspace, columnspace, rank, nullity o gramschmidt, ortogonalbasis, orthonormalbasis o qr, lu o jacobi  Supports SISC=20 o Open mathrepl/sisc/siscstartmathrepl.scm in Quack. o Run Scheme o (load "siscstartmathrepl.scm") The coolest stuff in mathrepl is the number theorectic code though. The mathrepl wasn't an attempt to make a coherent library, but rather a quick experiment to see, how much one can bend Scheme in order to make the normal Scheme repl suitable for "calculator calculations". See the docs for examples. <http://www.jasoegaard.dk/mathrepl.zip>; (if you study the function jacobi, promise not to become depressed) =20 Jens Axel S=F8gaard 
Sign up for the SourceForge newsletter:
No, thanks