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MathGroup Archive 1998

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Re: Beginner's clothoid



Hans van Maanen wrote:

> I need to draw a clothoid, aka as Euler's spiral.
> 
> The equations are something like this ...
> 
> x = Integrate[Cos[s^2],s]
> y = Integrate[Sin[s^2],s]

Hans,
You need to use ParametricPlot:

(the use of N below might speed things up)

x = Integrate[Cos[s^2],s]//N
y = Integrate[Sin[s^2],s]//N


	1.25331 FresnelC[0.797885 s]


	1.25331 FresnelS[0.797885 s]


ParametricPlot[{x,y},{s,0, 3}];

-- 
Allan Hayes
Training and Consulting
Leicester, UK
hay@haystack.demon.co.uk
http://www.haystack.demon.co.uk
voice: +44 (0)116 271 4198
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