I think you are looking for Lebesque measure, wikipage.

Quote: “For lower dimensions n = 1, 2, or 3, it coincides with the standard measure of length, area, or volume. In general, it is also called n-dimensional volume, n-volume, hypervolume, or simply volume.”

This is marvellous. Thank you. I will save this link and make my own!

Could you repeat the question?

I use LibreSudoku. It’s a very nice Sudoku app.

And of those, pride is the biggest. I’m really proud of my keyboards.

We still do, we still do.

I’m pretty happy with my Corne keyboards. They are nice to tinker with.