Big Calculator with 3" X 3/4" Display We know you're a mature adult who's seen a lot over the years. You've seen so much that you've worn out those old eyes of yours. We won't tell anyone that now you need a 7-1/2" x 5-7/8" x 7/8" OA calculator with a big 8-digit 3" x 3/4" adjustable display. With big, high-contrast buttons. With all the standard memory, square root functions, etc., that you've forgotten how to do without a little help. And its battery operated so you don't even have to remember to use it in the sun. Ain't maturity grand?