"Cornu Spiral 
'<hr/>
'(also <strong>Clothoid</strong> or <strong>Euler Spiral</strong>)
#rad
'The equations is defined by the Fresnel integrals:
x(t) = $Integral{cos(s^2) @ s = 0 : t}
y(t) = $Integral{sin(s^2) @ s = 0 : t}
#hide
PlotWidth = 440
PlotHeight = 400
#post
$Plot{x(t)|y(t) @ t = 0 : 2*π}
#pre

'Tip: Click "<b>Calculate</b>" to see the respective plot.