optval): +19.6373
 
norm(A*x-b,1):
   ans   =   19.6373
Optimal vector:
   x     = [  0.0454  0.7771 -0.4288 -0.2071 -0.6081  0.0065 -0.0013  0.0645 -0.3340 -0.6522 ]
Residual vector:
   A*x-b = [ -0.0000 -1.0527 -0.7833  1.6843  0.1257  2.5993  1.2661 -0.0000  0.2758 -1.6365 -0.9791  2.6851  0.8774 -0.8686  0.0000  1.6512 -0.0000  1.5824  0.0000  1.5699 ]
Equality constraints:
   C*x   = [ -1.0290  0.2431 -1.2566 -0.3472 -0.9414 ]
   d     = [ -1.0290  0.2431 -1.2566 -0.3472 -0.9414 ]
Lagrange multiplier f