[seqfan] Functional Inverse

Karol penson at lptl.jussieu.fr
Wed Apr 21 11:22:11 CEST 2010

Does anybody know how to obtain  quickly in closed form the functional 
          denoted by Inv(a, b, c ; x) , of the Gauss hypergeometric 
function ( in Maple notation)
          hypergeom( [a, b], [c], x),  satisfying

               hypergeom( [a, b], [c], Inv(a, b, c ; x) ) = x    ?

   Thanks in advance, Karol A. Penson


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