Ciro Santilli @cirosantilli 40

This important and common simple case has easy properties.

Specials sub case of the general linear group when the determinant equals exactly 1.

All possible repetitive crystal structures!

219 of them.

This is a good book, it gives a summary of biographies, and a reasonable description of the main ideas, with many illustrations. Each subject is not presented in incredible detail, but it is a good overview of events.

Weight: medium.

Can import from: MIDI.

Can export to:

Cannot hear any sound from it on Ubuntu 20.04: askubuntu.com/questions/510052/how-do-you-get-rosegarden-to-play-sound-when-playing-a-midi-in-it

The name makes absolutely no sense in modern terms, as nor colors nor light are used directly in the measurements. It is purely historical.

Qt front-end for FluidSynth.

One of the defining properties of algebraic structure with two operations such as ring and field:This property shows how the two operations interact.