I am preparing to take my Amatuer Radio license tests and needed a calculator that would handle simple algebra. This is my 3rd TI-30, my children having run off with the previous ones, and it seems to weigh less. The display is nice too. I have more advanced calculators with all sorts of functions etc, but just try to do a simple square root....LOL. Normally I would use calculators on my laptop, or in the spreadsheet, or on my cell phone, but those might also be used for cheating and are most likely not allowed. In any case, I like having another one of these TI30s.