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devel / comp.graphics.apps.gnuplot / Cornu spiral plot using CERF function

Cornu spiral plot using CERF function

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Subject: Cornu spiral plot using CERF function
From: layz...@aol.com (Al Greynolds)
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by: Al Greynolds - Mon, 18 Oct 2021 15:06 UTC

Needed to do some diffraction calculations and remembered that the complex Fresnel Integral can be written in terms of a complex ERF function.

fresnel(x) = {1.,1.}*cerf(sqrt(pi)*{1.,-1.}*x/2.)/2.
set samples 1000
set parametric
unset key
plot real(fresnel(t)),imag(fresnel(t))

After almost 2 decades as a user, Gnuplot still can amaze me. Keep up the good work all you developers.

Subject	Author
Cornu spiral plot using CERF function	Al Greynolds