[sage-support] Re: Multiprocessing for Tensors is not working for Macintosh. (SageMath 9.0)

Hi, Le dimanche 24 mai 2020 15:15:14 UTC+2, Alan Stafford a écrit : > > Multiprocessing of Tensors is not working for Macintosh. > > Alas, this is a known issue that has been reported repeatedly by macOS users: Sage's multiprocessing seems broken on macOS. No fix has been proposed yet. What is

[sage-support] Re: Cotton Tensor gives wrong result.

Hi, What do you mean exactly by "Cotton tensor gives wrong result" ? Maybe this is matter of convention... SageMath's definition of the Cotton conformal tensor is here: https://doc.sagemath.org/html/en/reference/manifolds/sage/manifolds/differentiable/metric.html#sage.manifolds.differentiable.me