As the title says: what is, if any, the sine and cosine of an ellipse?
2026-04-01 03:41:34.1775014894
Does an ellipse have sine and cosine?
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An ellipse is a curve, so the concept of taking a sin or cos of it doesn't make much sense.
However, an ellipse with semi-major axis $a$ and semi-minor axis $b$ can be described by the equations $x = a \cos(t), y=b\sin(t)$ as $t$ goes from $0$ to $2\pi$.