Changes between Initial Version and Version 1 of Ticket #17740, comment 22


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Timestamp:
02/15/15 16:30:36 (7 years ago)
Author:
vdelecroix
Comment:

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  • Ticket #17740, comment 22

    initial v1  
    11Now, I am not sure anymore that your solution is better. The implementation of `division_parent` tries to execute `~parent.one()`. But the default implementation of `__invert__` of an element `x` in `sage.structure.element` is precisely to call `1/x` (and soonly `x.parent().one()/x` with #17692). Hence using `division_parent` should lead to some infinite recursions that we curiously do not see here. No?
     2
     3EDIT: This is fine, because in `x.parent().one()/x` the numerator and denominator have the same type... and so no coercion is involved and `__div__` is called directly.