[sage-devel] Re: inconsistency in computation of differential of a map between manifolds

2019-08-29 Thread Eric Gourgoulhon
Le mercredi 28 août 2019 21:29:29 UTC+2, Eric Gourgoulhon a écrit : > > > You are perfectly right: "check" would be more appropriate than "verbose" > in this context. > I'll open a ticket for this and make "check=True" the default. > This is now https://trac.sagemath.org/ticket/28422. Eric.

[sage-devel] Re: inconsistency in computation of differential of a map between manifolds

2019-08-28 Thread Eric Gourgoulhon
Hi Simon, Le mercredi 28 août 2019 07:07:03 UTC+2, Simon King a écrit : > > > Is the option really called "verbose=True"? Not "check=True", like in > most other cases? > > You are perfectly right: "check" would be more appropriate than "verbose" in this context. I'll open a ticket for this

[sage-devel] Re: inconsistency in computation of differential of a map between manifolds

2019-08-27 Thread Simon King
Hi Eric, On 2019-08-27, Eric Gourgoulhon wrote: > To avoid such mistake, you can run set_inverse() with the option > verbose=True. Then the provided inverse transform is checked. Is the option really called "verbose=True"? Not "check=True", like in most other cases? Best regards, Simon --

[sage-devel] Re: inconsistency in computation of differential of a map between manifolds

2019-08-27 Thread Eric Gourgoulhon
Le mardi 27 août 2019 16:51:20 UTC+2, Andreas Hermann a écrit : > > I am sorry, but this is a stupid mistake. The function defined via > set_inverse() is not the inverse function since the first entry of atan2 is > by definition the y-coordinate. If one swaps u and v in atan2 then > everything

[sage-devel] Re: inconsistency in computation of differential of a map between manifolds

2019-08-27 Thread Andreas Hermann
I am sorry, but this is a stupid mistake. The function defined via set_inverse() is not the inverse function since the first entry of atan2 is by definition the y-coordinate. If one swaps u and v in atan2 then everything is fine. -- You received this message because you are subscribed to the