Updates:
Cc: [email protected]
Comment #4 on issue 2782 by [email protected]: ReferenceFrame indices
does not properly set the indices
http://code.google.com/p/sympy/issues/detail?id=2782
This was a simple fix. I've fixed it here:
https://github.com/hazelnusse/sympy/commit/5e7c5e05d9a86389fb533c3d1c6a2585b6b61343
Now you get the behavior you would expect:
from sympy.physics.mechanics import ReferenceFrame
N = ReferenceFrame('N', indices=['1', '2', '3'])
N['1']
N['1']
N['2']
N['2']
N['3']
N['3']
However, we probably need to address the issue that orientnew can't take
indices, so maybe we can try to fix that and then open a pull request.
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