It's not that hard to learn, you can do it in a few evenings. Grab something like Nielsen and mess around on qirk. Now whether it's worth learning? Eh, maybe i

It's not that hard to learn, you can do it in a few evenings. Grab something like Nielsen and mess around on qirk. Now whether it's worth learning? Eh, maybe it's good to exercise some math skills that have been atrophying.