On 02/15/2013 12:13 PM, Anders Logg wrote: > On Fri, Feb 15, 2013 at 12:11:01PM +0100, Johan Hake wrote: >> It would serve my need, but as Marting says what if a an Expression need >> several time scales, aso. >> If t here was a scalar Constant and passed to Expressions which needed >> it, we would have more or less the same solution. However it would be >> more flexible. >> There might for example be other global variables which also should be >> updated. > > In that case, one could think of some fancy class GlobalConstant that > can be used for any such constant and which keeps track of who uses > the constant so it can be updated in a single place.
I think you miss the point. By using the Constant directly in the Expression they are automatically updated when you change the value of the constant. Johan _______________________________________________ Mailing list: https://launchpad.net/~dolfin Post to : dolfin@lists.launchpad.net Unsubscribe : https://launchpad.net/~dolfin More help : https://help.launchpad.net/ListHelp
