Summary: I am a finance major. They made a great product. Easy use and big buttons. Works perfect. I ordered the hp10 and it sucked. I got this now and much much better...and cheaper. Get it if you need a good working finance calc.
Summary: i bought this to calculate mortgage amortization. it has pre-set button for inputing different variables, like time, principle, etc. for my purpose, it works well. it has other functions and purpose too, but i don't use them, so i can't comment on them.
Summary: 3.25" Width x 6" Height is the size Fits a shirt pocket but sticks out about an inch Display looks sharp (pun intended) and has colorful keys Keys are plastic (not soft rubber), and has a nice feel/click to them Two line display shows your keys pressed on first line and second line result of the operation It comes with a battery CR2032 preinstalled Plastic flap case is nice touch with an inside pocket slip It works fine.