Tom de Geus

Thanks for this PR. I'm still quite confused though. Could you try to explain, in words, the source of the problem? Also it seems that all you did was to...

Could you explain (with some snippets) here in words what `if` is causing the issue?

Thanks @goto40 . So it the first or the second case that leads to the static assertion? So I ask, because all if this *does* work when you did ```...

Would be great! Actually, it would also be great to have a little section in the docs as well. Maybe somewhere around [here](https://xtensor.readthedocs.io/en/latest/quickref/basic.html#initialization) ?

I would support the idea! Though, if operations make sense and are robust, I think we could support them here, even if they are not in numpy. After all, we...

Out-of-curiosity : what did you have in mind to add?

Sounds great. Publishing algorithm also increases peer-review, so you'd win too

That is indeed what I would do too. I was just worried that we would be relatively lazy in updating it, being an external library.

Let's omit them for now. We can always add them if they are requested

I wanted to start with implementing `xt::xvector`, but in fact I need some guidance. * I should probably follow https://xtensor.readthedocs.io/en/latest/external-structures.html#embedding-a-full-tensor-structure ? * In fact I realised that I cannot find...