gol_welsch | R Documentation |
Calculates the nodes and weights for Legendre polynomials shifted to the interval (eps^2, 1).
gol_welsch(eps, qwts)
eps |
obstruction fraction 0 <= eps < 1 |
qwts |
an input R vector with length equal to the number of quatrature points. |
If N is the maximum polynomial order to be evaluated qwts should be at least of length N/2 + 1. Quadratures will then be nominally exact.
a vector of quadrature nodes the same length as qwts
in the open interval
(eps^2, 1). qwts
will be overwritten with the quadrature weights.
Called by zapm()
and zapm_iso()
.
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