← Trigonometry
Lesson 4 — Cartesian ↔ Polar
Coordinates & Identities
Cartesian ↔ Polar
x = r cos θ y = r sin θ
r = √(x²+y²) θ = atan2(y,x)
Cartesian (x, y)
Radius r
θ
Polar (r, θ)
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