Modern calculators have many buttons, including ones for sine, square root, pi and exponents. But it’s possible just two could suffice
The most impractical calculator in the world only has two buttons
Original Source
This article was collected from: Scientific American
Gabeshana News automatically collects article information
from external RSS/Atom sources. The original article remains
available at the source website. Please visit the original
source for the complete article and the latest information.