SJulia already works as a package (Jim Garrison made the changes). I just learned that it should be possible to add a mode to the REPL in the package code, so that the fork/PR-to-Julia is no longer necessary. I hope to get to this soon.
--John El lunes, 20 de abril de 2015, 18:14:27 (UTC+2), Viral Shah escribió: > > Would it be possible to install SJulia as a Julia package, and switch > between SJulia and Julia - kind of like how we have the help> and the > shell> prompts, which can be activated with ? and ; > > -viral > > On Monday, April 20, 2015 at 5:46:08 PM UTC+5:30, lapeyre....@gmail.com > wrote: >> >> Here is SJulia >> >> https://github.com/jlapeyre/SJulia >> >> sjulia> f = (x^y + y^z + z^x)^3 >> (x ^ y + y ^ z + z ^ x) ^ 3 >> >> sjulia> f = (x^y + y^z)^3 >> (x ^ y + y ^ z) ^ 3 >> >> sjulia> g = Expand(f) >> x ^ (3 * y) + 3 * (x ^ (2 * y)) * (y ^ z) + 3 * (x ^ y) * (y ^ (2 * z)) + >> y ^ (3 * z) >> >> SJulia is very close in spirit to Mathematica (Wolfram). This is more or >> less a language written in Julia, >> although it can be made to communicate well with Julia. From the user's >> perspective, there are advantages and disadvantages to >> implementing symbolic capability as an extension to languages like Julia >> or Python rather than as >> another language. I think it is possible to have a language that supports >> both. >> >> Also, CAS can describe various software tools that are designed to do >> very different things. For instance, a CAS may be intended to implement >> more or less mathematical rigor. It may have a hierarchy of computer >> language types meant to represent mathematical objects. Or >> it may (like Mathematica, Maple, and Maxima) be based on 'expressions' >> that are essentially devoid of meaning. All of these distinctions, >> particularly the latter, regarding purpose, are typically confused in >> discussions on internet fora. >> >> I think that Julia is a great language for symbolic computation. Have fun! >> --John >> >> >> On Sunday, April 19, 2015 at 7:47:34 PM UTC+2, Marcus Appelros wrote: >>> >>> Hi Kevin, thanks for the link! From the end of that thread: >>> >>> "Has anybody written pure Julia symbolic math for things like: >>> >>> f = (x**y + y**z + z**x)**100 >>> g = f.expand()" >>> >>> "As far as I know there is no Julia package which supports such symbolic >>> expressions and manipulation." >>> >>> Now there is! >>> >>> Saw a more recent dev discussion calling for someone to write a package >>> like this. Have looked through the package list many times and never found >>> anything that appeared alike the vision of Equations, SymPy has some common >>> functionality however certainly didn't start developing in Julia to use >>> Python. >>> >>> Developing this code is indeed very enjoying and as more of the planned >>> features become released a solid user base will be established, have >>> expanded the todolist with an impelling to read the discussion in your link >>> so as to hasten the construction of such a foundation, as per your >>> recommendation. >>> >>> With love. <3 >>> >>
