I had come across this, but my equations aren't linear.
On 12 December 2010 10:46, Alex Gian <[email protected]> wrote: > I don't know much about the subject, but a quick search of the J Wiki > yields this page: > http://www.jsoftware.com/jwiki/NYCJUG/linearDiophantineEquations > which may or may not be if use to you. > > On Sun, 2010-12-12 at 08:17 +0000, Justin Paston-Cooper wrote: >> Hello, >> >> Could anyone please tell me what facilities there are for J for >> solving diophantine equations? Specifically, I have square integer >> matrices A of rank n, and I want to find integer vectors x of length n >> such that xA = y (another integer vector) and x.x = z (an integer). >> I'll also have cases where it is useful to find scalars z with xAx = >> z. Have such packages been written for J? Should I be looking >> somewhere else? I've been working with Mathematica, and it hasn't been >> particularly fast. >> >> Thanks in advance, >> >> Justin >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > > > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
