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 | 1 | initial version |
I think you are right about the fact that you found a bug, which is unfortunately not rare when working in the Symbolic Ring :/ Could you report it on the trac server by yourself (ask for help in comment otherwise) ?
A way to get the correct solution, though not satisfactory, is to simplify the expression zi first, to help the solver:
sage: zzi = zi.full_simplify()
sage: zzi
-cos(phi)/(sqrt(2)*sin(phi) + sqrt(2))
sage: solve(zzi == 0, phi)
[phi == 1/2*pi]
This both gives you the correct answer and confirms that your hand-made calculation is reliable :)
| | 2 | No.2 Revision |
I think you are right about the fact that you found This is indeed a bug, which is unfortunately not rare when working in the Symbolic Ring :/ Could you report it on the trac server by yourself (ask for help in comment otherwise) ?
A way to get the correct solution, though not satisfactory, is to simplify the expression zi first, to help the solver:
sage: zzi = zi.full_simplify()
sage: zzi
-cos(phi)/(sqrt(2)*sin(phi) + sqrt(2))
sage: solve(zzi == 0, phi)
[phi == 1/2*pi]
This both gives you the correct answer and confirms that your hand-made calculation is reliable :)
