Class lsst::afw::geom::ellipses::ReducedShear

class ReducedShear : public lsst::afw::geom::ellipses::detail::EllipticityBase

A complex ellipticity with magnitude \(|e| = \frac{a-b}{a+b} \).

For a more complete definition, see Bernstein and Jarvis (2002); this the same as their reduced shear \(g\) (eq. 2.8).