Hi Harold, On Sun, Apr 25, 2010 at 3:52 AM, Harold E. <[email protected]> wrote: > Hi, > > I saw that a new modules for physics began to be implemented, and the > part which interested me was on the physical units: for a project I > tried to write my own classes, inspired by those in ScientificPython, > but evidently it was not compatible with sympy, and so I thought and > tried to inspired from the classes in sympycore, without successes. > But yet, with a better understanding of sympy, I read the recent > implementation and had few questions and observations: the actual way > is useful to make symbolic computations with units, but it is > convenient when we want to work with units, e.g. to convert a quantity > in one unit into another, or to take into account the dimension of > units. > So I was wondering me if it was not possible to merge actual and > ScientificPython approaches. For my project I tried several ways, the > latest was to create classes for the dimension (a tuple), the unit > symbol (like actual unit) and for the unit; the latest having a > symbol, a factor and a dimension — something like that (I still search > the best way to arrange).
Is this how ScientificPython does it? http://dirac.cnrs-orleans.fr/ScientificPython/ScientificPythonManual/Scientific.Physics.PhysicalQuantities-module.html Our units are very simple, see sympy/physics/units.py, so anything more advanced is welcomed. If you get something working, let us know and we can review the code and merge it in, or help you improve it. Ondrej -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
