K.fun

0th

Percentile

quarter period K

Calculates the K.fun in terms of either \(m\) (K.fun()) or \(k\) (K.fun.k()).

Keywords
math
Usage
K.fun(m, strict=TRUE, maxiter=7)
Arguments
m

Real or complex parameter

strict

Boolean, with default TRUE meaning to return an error if the sequence has not converged exactly, and FALSE meaning to return the partial sum, and a warning

maxiter

Maximum number of iterations

References

R. Coquereaux, A. Grossman, and B. E. Lautrup. Iterative method for calculation of the Weierstrass elliptic function. IMA Journal of Numerical Analysis, vol 10, pp119-128, 1990

Aliases
  • K.fun
  • e16.1.1
Examples
# NOT RUN {
K.fun(0.09)  # AMS-55 give 1.60804862 in example 7 on page 581

# next example not run because: (i), it needs gsl; (ii) it gives a warning.
# }
# NOT RUN {
K.fun(0.4,strict=F, maxiter=4) - ellint_Kcomp(sqrt(0.4))
# }
Documentation reproduced from package elliptic, version 1.4-0, License: GPL-2

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