Are there any identities for incomplete elliptic integrals of the third kind with complex arguments?












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Abramowitz and Stegun provide identites for dealing with incomplete elliptic integrals of the first and second kinds with complex arguments:



For $tantheta = sinhphi$



17.4.8
$F(iphi | alpha) = iF(theta | frac{pi}{2} - alpha)$



17.4.9
$E(iphi | alpha) = -i E(theta | frac{pi}{2} - alpha) + i F(theta frac{pi}{2} - alpha) + itantheta(1-cos^2alpha sin^2theta)^{1/2}$



Are there any useful identities for incomplete elliptic integrals of the third kind, $Pi(n;phi | alpha)$?



I would like to evaluate such integrals numerically, but many libraries such as GSL only handle real arguments.










share|cite|improve this question









$endgroup$

















    0












    $begingroup$


    Abramowitz and Stegun provide identites for dealing with incomplete elliptic integrals of the first and second kinds with complex arguments:



    For $tantheta = sinhphi$



    17.4.8
    $F(iphi | alpha) = iF(theta | frac{pi}{2} - alpha)$



    17.4.9
    $E(iphi | alpha) = -i E(theta | frac{pi}{2} - alpha) + i F(theta frac{pi}{2} - alpha) + itantheta(1-cos^2alpha sin^2theta)^{1/2}$



    Are there any useful identities for incomplete elliptic integrals of the third kind, $Pi(n;phi | alpha)$?



    I would like to evaluate such integrals numerically, but many libraries such as GSL only handle real arguments.










    share|cite|improve this question









    $endgroup$















      0












      0








      0





      $begingroup$


      Abramowitz and Stegun provide identites for dealing with incomplete elliptic integrals of the first and second kinds with complex arguments:



      For $tantheta = sinhphi$



      17.4.8
      $F(iphi | alpha) = iF(theta | frac{pi}{2} - alpha)$



      17.4.9
      $E(iphi | alpha) = -i E(theta | frac{pi}{2} - alpha) + i F(theta frac{pi}{2} - alpha) + itantheta(1-cos^2alpha sin^2theta)^{1/2}$



      Are there any useful identities for incomplete elliptic integrals of the third kind, $Pi(n;phi | alpha)$?



      I would like to evaluate such integrals numerically, but many libraries such as GSL only handle real arguments.










      share|cite|improve this question









      $endgroup$




      Abramowitz and Stegun provide identites for dealing with incomplete elliptic integrals of the first and second kinds with complex arguments:



      For $tantheta = sinhphi$



      17.4.8
      $F(iphi | alpha) = iF(theta | frac{pi}{2} - alpha)$



      17.4.9
      $E(iphi | alpha) = -i E(theta | frac{pi}{2} - alpha) + i F(theta frac{pi}{2} - alpha) + itantheta(1-cos^2alpha sin^2theta)^{1/2}$



      Are there any useful identities for incomplete elliptic integrals of the third kind, $Pi(n;phi | alpha)$?



      I would like to evaluate such integrals numerically, but many libraries such as GSL only handle real arguments.







      complex-numbers elliptic-integrals






      share|cite|improve this question













      share|cite|improve this question











      share|cite|improve this question




      share|cite|improve this question










      asked Jan 11 at 19:22









      DannyDanny

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