SOLVESINGULAR _ _ _ _ _ _ _ _ _ _ _ _ switch

When solvesingular is on, singular or underdetermined systems of linear equations are solved, using arbitrary real, complex or integer variables in the answer. Default is on.

examples:

solve({2x + y,4x + 2y},{x,y}); 

         ARBCOMPLEX(1)
  {{X= - -------------,Y=ARBCOMPLEX(1)}} 
               2


solve({7x + 15y - z,x - y - z},{x,y,z}); 


      8*ARBCOMPLEX(3)
  {{X=----------------
            11
         3*ARBCOMPLEX(3)
    Y= - ----------------
               11
    Z=ARBCOMPLEX(3)}}


off solvesingular; 

solve({2x + y,4x + 2y},{x,y}); 

  ***** SOLVE given singular equations 


solve({7x + 15y - z,x - y - z},{x,y,z}); 


  ***** SOLVE given singular equations

The integer following the identifier arbcomplex above is assigned by the system, and serves to identify the variable uniquely. It has no other significance.