yn

Bessel function of the second kind, integer order $n.

Synopsis

my $y = POSIX::yn($n, $x);

Edge cases

• yn($n, 0) returns negative infinity (the function has a singularity at zero).

Differences from upstream

Fully compatible with upstream POSIX.

See also

• y0, y1 — fixed-order variants.

• jn — Bessel function of the first kind.