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
http://www.haystack.demon.co.uk
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