A button is a fastener that joins two pieces of fabric together by slipping through a loop or by sliding through a buttonhole.
In modern clothing and fashion design, buttons are commonly made of plastic but also may be made of metal, wood, or seashell. Buttons can also be used on containers such as wallets and bags. Buttons may be sewn onto garments and similar items exclusively for purposes of ornamentation. In the applied arts and craft, a button can be an example of folk art, studio craft, or even a miniature work of art. In archaeology, a button can be a significant artifact.
I need a new calculator. I always wondered what the M buttons on a calculator were for, and today I finally got around to Googling for it. Pretty cool.
While watching videos explaining various calculator buttons, I found that some calculators have a 2nd button and a format button where you can...