On Tuesday, December 13, 2016 5:58 PM, Patrick Dupre <pdupre@xxxxxxx> wrote: Hello, How can I call the Faddeeva function in gnuplot ? I get: invalid command Same thing with w_of_z voigt works fine. I have gnuplot-5.0.5 and libcerf1-1.5-0.x86_64 and libcerf-devel-1.5-0.x86_64 Thank. =========================================================================== Patrick DUPRÉ | | email: pdupre@xxxxxxx Laboratoire de Physico-Chimie de l'Atmosphère | | Université du Littoral-Côte d'Opale | | Tel. (33)-(0)3 28 23 76 12 | | Fax: 03 28 65 82 44 189A, avenue Maurice Schumann | | 59140 Dunkerque, France =========================================================================== _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx I am sorry for keyboard error. I meant to post how are you posting the function? I see in http://www.gnuplot.info/demo/cerf.html That the function can be called via: <quote> set yrange [-1:1] set title "Faddeeva/Voigt Function" set key samplen 0.5 plot real( faddeeva(x) ) lw 2, \ imag( faddeeva(x) ) lw 2, \ real(cdawson(x)) lt -1 lw 0.5 title "Dawson's Integral" </quote> I see what you mean now: [olivares@tricore Downloads]$ gnuplot G N U P L O T Version 5.0 patchlevel 5 last modified 2016-10-02 Copyright (C) 1986-1993, 1998, 2004, 2007-2016 Thomas Williams, Colin Kelley and many others gnuplot home: http://www.gnuplot.info faq, bugs, etc: type "help FAQ" immediate help: type "help" (plot window: hit 'h') Terminal type set to 'x11' gnuplot> load 'cerf.2.gnu' "cerf.2.gnu", line 34: undefined function: faddeeva That is the error you are getting. Then this has to be a bug! :) I learned something new today. Thank you very much! I had never heard of the faddeeva function :) I had heard about Fresnel Integral, Fejer kernel, etc, Gibbs phenomenon, etc. Gamma and Beta functions. Best Regards, Antonio _______________________________________________ users mailing list -- users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to users-leave@xxxxxxxxxxxxxxxxxxxxxxx
