[SciPy-dev] design of a physical quantities package: seeking comments
Sun Aug 24 17:43:11 CDT 2008
I just wanted to post an update. I added a constants subpackage in quantities
which supports the database of physical constants compiled by NIST. It is
similar to the structure of scipy.constants. I am seriously considering adding
an additional property to Quantity: uncertainty, which would be used to
account for and propagate errors or precision. I'm also planning on starting
unit testing in earnest, as soon as numpy-1.2 is released.
If you are interested, quantities is posted at
http://dale.chess.cornell.edu/chess-wiki/Quantities . The package is still in
heavy development and should not be relied on for accuracy or stability of
API. For example, currently units of joules get simplified into kg m^2/s^2, and
joules_ is treated as a compound unit and will not be simplified until
explicitly requested. I am considering swapping the definitions. Any comments?
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