Greetings, It appears that the function gsl_sf_ellint_E(phi,m) is periodic with period 2\pi. However, E(\phi|m), even under the definition at:
http://www.gnu.org/software/gsl/manual/html_node/Definition-of-Legendre-Forms.html#Definition-of-Legendre-Forms is actually *quasi*-periodic, satisfying the relation: E(\phi+n\pi,m) = 2n E(m) + E(\phi,m) Now I can use this relationship to calculate the correct value of E(\phi,m) for larger \phi ... except for \pi/2 < \phi < \pi Any ideas how to do this? -- Lionel B _______________________________________________ Help-gsl mailing list Help-gsl@gnu.org http://lists.gnu.org/mailman/listinfo/help-gsl
