The most impractical calculator in the world only has two buttons
Scientific American ·
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
Modern calculators have many buttons, including ones for sine, square root, pi and exponents. But it’s possible just two could suffice
1 sources · 1 articles · updated 2026-11-03 18:00 UTC · science