Hi all I need to solve a LP so I have installed 'csc': sage: p.solve(solver='cbc')
and then copy and paste the example in http://www.sagemath.org/doc/reference/sage/numerical/mip.htm that is: sage: p = MixedIntegerLinearProgram(maximization=True) sage: x = p.new_variable() sage: p.set_objective(x[1] + 5*x[2]) sage: p.add_constraint(x[1] + 0.2*x[2], max=4) sage: p.add_constraint(1.5*x[1] + 3*x[2], max=4) sage: p.solve() and the result is: --------------------------------------------------------------------------- AttributeError Traceback (most recent call last) /home/hassan/<ipython console> in <module>() /home/hassan/Apps/sage-4.2.1/local/lib/python2.6/site-packages/sage/numerical/mip.so in sage.numerical.mip.MixedIntegerLinearProgram.solve (sage/numerical/mip.c:5059)() /home/hassan/Apps/sage-4.2.1/local/lib/python2.6/site-packages/sage/numerical/mipCoin.so in sage.numerical.mipCoin.solveCoin (patch/mipCoin.cpp:595)() AttributeError: MixedIntegerLinearProgram instance has no attribute '_variables_type' Pleas Help! -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
