
Re: Linear algebra equation solver?
Posted:
May 19, 2012 4:24 PM


On Saturday, May 19, 2012 1:05:07 PM UTC+2, clicl...@freenet.de wrote: > Victor Eijkhout schrieb:
> > I have two equations, z = y + ax (a scalar, x,y,z vector) & p^t z = 0 > > (p another vector), assume no two vectors are orthogonal. Vectors > > x,y,p are known, vector z and scalar a are unknown. > > > > The solution of this is z = y+az where a = (p^ta)^{1}(p^ty) > > Actually it is z = y + a x where a = (p^t y) / (p^t x).
Oops. Yes.
> but the general solution for vectors of arbitrary dimension?
Indeed.
> Axiom or > FriCAS may be the best candidate then. > > Martin.
Will take a look. Thanks for the pointers.
Victor.

