Maybe I will check this Sonic port out. I had to get a TI-84 Plus CE for a college course I took a few years back. I'm an RPN guy so it pained me, but it's a

Maybe I will check this Sonic port out. I had to get a TI-84 Plus CE for a college course I took a few years back. I'm an RPN guy so it pained me, but it's a nice step up from the 1990s style TI calculators. It has a fast Z80 family processor, plenty of RAM, a decent 320x240 color display, and a built-in battery that's rechargeable by USB. Usability for everything I used it for is quite good (matrix functions and some root-finding) and almost self-explanatory. I take it out of the drawer it's in about once a year or so and standby battery life is extremely good. It must cut off power completely in standby.