astarb - maxplus linear system solution
Solve x=Ax+b in the maxplus algebra when there is no circuits with positive weight in G(A') (the incidence graph of A', that is it exists an arc from j to i if A_ij is nonzero).
It is much more efficient in time and memory than star(A)*b.
A=#([-3,-2;-1,0]) b=[%0;%1] w=astarb(A,b) n=10;A=#(-rand(n,n));b=#(rand(n,1));astarb(A,b)-star(A)*b
star, karp, howard, semihoward, maxplus, shortest_path,