Euler spiral
PLANE CURVE GIVEN BY FRESNEL INTEGRALS SUCH THAT THE CURVATURE INCREASES LINEARLY WITH CURVE LENGTH
Cornu spiral; Clothoid; Sici spiral; Si-ci-spiral; Nielsen spiral; Euler's spiral; Cornu Spiral; Transition spiral
An Euler spiral is a curve whose curvature changes linearly with its curve length (the curvature of a circular curve is equal to the reciprocal of the radius). Euler spirals are also commonly referred to as spiros, clothoids, or Cornu spirals.