def rmatvec(self, v):
        if self.collapsed is not None:
            return np.dot(self.collapsed.T.conj(), v)
        return LowRankMatrix._matvec(v, np.conj(self.alpha), self.ds, self.cs)
Evaluate w = M^H v
dataset/ETHPy150Open scipy/scipy/scipy/optimize/nonlin.py/LowRankMatrix.rmatvec