Le forum de XCAS

simplex_reduce is a useful command. Unfortunately there is a bug in it, if not more. Maximize x+y subject to x+y+z <= 3 x,y,z >= 0 yields the solution x=3,y=3,z=0 but then x+y+z=3+3+0=6 > 3. See simplex_reduce([[1,1,1]],[3],[1,1,0]); The problem seems to be that the code does not know how to handle ...