On Aug 19, 2008, at 4:31 AM, Stan Schymanski wrote: > I don't know if I have a mathematical blackout, but in my opinion, an > inequality such as the below one should be squarable, as long as all > variables are positive. Is this just not implemented, or am I trying > something stupid? Thanks already for your help! > > Stan
It's not you, it's just that no one has implemented this yet. (Yes, it should work.) > > ---------------------------------------------------------------------- > | SAGE Version 3.1.1, Release Date: 2008-08-17 | > | Type notebook() for the GUI, and license() for information. | > ---------------------------------------------------------------------- > > sage: var('bv rwat av lwat') > (bv, rwat, av, lwat) > sage: assume(bv>0,rwat>0,av>0,lwat>0) > sage: eqn=bv < sqrt((bv^2*rwat + av*lwat)/rwat) > sage: eqn^2 > ---------------------------------------------------------------------- > ----- > TypeError Traceback (most recent call > last) > > /Users/sschym/Downloads/Free/sage-3.1.1/<ipython console> in > <module>() > > /Users/sschym/Downloads/Free/sage-3.1.1/integer.pyx in > sage.rings.integer.Integer.__pow__ (sage/rings/integer.c:9508)() > > TypeError: unsupported operand type(s) for ** or pow(): > 'SymbolicEquation' and 'int' > sage: > > --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---