The story
Etymology from Wiktionary, CC BY-SA 4.0.
cardioid
Today it means: An epicycloid with exactly one cusp; the plane curve with polar equation ρ=1+ cos ,θ - approximately heart-shaped Full definition →
Today it means: An epicycloid with exactly one cusp; the plane curve with polar equation ρ=1+ cos ,θ - approximately heart-shaped Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.