ellipticEComplete

Complete elliptic integral of the second kind

Approximates the integral

E(m) = $(INTEGRATE 0, π/2) sqrt( 1- m sin2 t) dt

where m = 1 - x, using the approximation

P(x) - x log x Q(x).

Though there are no singularities, the argument m1 is used rather than m for compatibility with ellipticKComplete().

E(1) = 1; E(0) = &pi;/2. m must be in the range 0 <= m <= 1.

real
ellipticEComplete
(
real x
)

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