id summary reporter owner description type status priority milestone component resolution keywords cc merged author reviewer upstream work_issues branch commit dependencies stopgaps
29248 Index notation for tensors should allow for unicode characters egourgoulhon "In Sage 9.0, we have:
{{{
sage: E. = EuclideanSpace()
sage: t = E.tensor_field(1, 1, [[x, 1], [0, y]])
sage: t['^μ_μ']
...
ValueError: index conventions not satisfied
}}}
Now, after the Python 3 switch, any unicode ''non-digit word-constituent'' character should be accepted, see [https://groups.google.com/d/msg/sage-devel/NUWoWB7i8tw/ZMKZ7N0uCAAJ this discussion]. This is especially pertinent for tensor indices, since Greek letters are often used to denote them." defect closed major sage-9.2 geometry fixed tensor, indices gh-LBrunswic egourgoulhon tscrim gh-mjungmath Matthias Koeppe Eric Gourgoulhon N/A 4d8305faf557774ff67bbb47cd0d76bb06fe71d0 4d8305faf557774ff67bbb47cd0d76bb06fe71d0