# 3: The Cornu Spiral

*Thumbnail: A double-end Euler spiral. The curve continues to converge to the points marked, as t tends to positive or negative infinity. Image used with permission (CC BY-SA 3.0; AdiJapan).*

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*Thumbnail: A double-end Euler spiral. The curve continues to converge to the points marked, as t tends to positive or negative infinity. Image used with permission (CC BY-SA 3.0; AdiJapan).*