// PiFast, copyright 1999-2001 Xavier Gourdon 
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       *    User constant file definition    *
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Version : 4.0
Constant name : Lemniscate_Sebah1
Comments :
A = 8*arcsinlemn(2/3) - 4*arcsinlemn (7/137) (Sebah 2001)
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Number of series : 2

Series number 0
Beta : 1
Series type : 0
Definition mode : 1
Alpha : 16/3
Beta : 16/3
Polynomial F : 8*n^2-10*n+3
Polynomial G : 8*n^2+2*n
Z : 16/81

Series number 1
Beta : 1
Series type : 0
Definition mode : 1
Alpha : -28/137
Beta : -28/137
Polynomial F : 8*n^2-10*n+3
Polynomial G : 8*n^2+2*n
Z : 2401/352275361

Approximate value : A = 5.24411510858