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Re: Beginner's clothoid

• To: mathgroup@smc.vnet.net
• Subject: [mg10749] Re: Beginner's clothoid
• From: Allan Hayes <hay@haystack.demon.co.uk>
• Date: Mon, 2 Feb 1998 00:44:45 -0500
• References: <6as7hl$f4r@smc.vnet.net>

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
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