The story
From its resemblance to a grenade, the weapon.
Etymology from Wiktionary, CC BY-SA 4.0.
math grenade
Today it means: The Curta, a cylindrical hand-held mechanical calculator invented in the 1930s. Full definition →
Today it means: The Curta, a cylindrical hand-held mechanical calculator invented in the 1930s. Full definition →
From its resemblance to a grenade, the weapon.
Etymology from Wiktionary, CC BY-SA 4.0.