This would've been so useful all those times I started over from not knowing.
Do you know what the MR and M+ and M (or whatever they are) buttons are for?
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
Thats right. M is memory. Those buttons are to add to the calc's memory, use the number stored in its memory, or in some cases you can even add and subtract the stored number. Depends on the calculator. As an example the one in front of me has a "memory clear" "show stored #" "subtract from stored number" and "add to stored number"
Problem with these is it changes a lot from calc to calc, so you need to be sure what exactly each button does before trying to use them. Like the + - buttons, do they just display what your stored # is +- some other number? or does it replace your stored number with that new one? Ive seen different calcs do either one
Do you know what the MR and M+ and M (or whatever they are) buttons are for?
Problem with these is it changes a lot from calc to calc, so you need to be sure what exactly each button does before trying to use them. Like the + - buttons, do they just display what your stored # is +- some other number? or does it replace your stored number with that new one? Ive seen different calcs do either one