Notes: "The Casio FX-702P calculator is both a scientific calculator and a programmable calculator that programs in a special version of BASIC. It is powered by two CR2032 batteries. The FX-702P was only made from 1981 to 1984. The first thing to notice is that there’s no “=” button. To use it as a simple calculator, you “write” the formula on the one-line (20 characters) display, and then hit the “EXE” button to execute the formula. "
