Haha me too! I had to read it twice

Yep! You type in something or some equation, and you want to 'save' it for later. This is really helpful if you need to keep a long decimal number. So you press M+ to add it to the M file. Then once you have the number you can access it anytime (I think through the M button I'm not quite sure) and if you have a new number press M+ again and it will add it to the number you have already. I haven't done this in a while but I think that's roundabout right

Nerdsarecool1212 if you google 'between two ferns justin beiber' it should come up

I know, I feel like I'm surrounded by amateurs.

That was my first comment on my shiny new account, so I'm only still jumping in the pit of procrastination.

^^ by me, forgot to login :)