Mateusz Baran

See for example 3.5 of this: https://www.sciencedirect.com/topics/mathematics/one-parameter-subgroup , one-parameter subgroups of Lie groups are commutative.

@kellertuer should we make the docs more clear that this is actually correct?

What do you mean by "for commutative groups" here? Even if a Lie group isn't commutative, its one-parameter subgroups are commutative.

This makes sense, I'm not fully satisfied with the way we currently handle static arrays. One thing I'd change in you code is that generated function. Something like this: ```julia...

PR #98 addresses the `_similar` part of this issue. The `_reshape` part needs to be solved separately.

> Perhaps there already is a function to extract the rotation matrix from `SpecialOrthogonal(n)` or `Rotations(n)`? If not, would `affine_matrix` be the right API, since rotations can be implemented as...

> Thanks all, that helps. I have a lot of code reading to do. I'll first finish the two tutorial examples in the docs and will come back to this...

Yes, I'd also say that this should be in ManifoldsBase.jl.

This is a hard problem. We are pretty much limited to 3 dimensions (actually 2 but there is a good way to fake the third one) and there are not...

[geomstats](https://github.com/geomstats/geomstats) has some interesting plotting functionality. We could perhaps take a look at that. Ref #178 .