@Utils.timeIt
    def eval2Deriv(self, m, v=None):
        mD = self.mapping.deriv(m - self.mref)
        if v is None:
            return mD.T * self.W.T * self.W * mD

        return mD.T * ( self.W.T * ( self.W * ( mD * v) ) )
Return socket instance used to connect to IMAP4 server.
dataset/ETHPy150Open simpeg/simpeg/SimPEG/Regularization.py/BaseRegularization.eval2Deriv--crossover with--dataset/ETHPy150Open azoft-dev-team/imagrium/env/Lib/imaplib.py/IMAP4_SSL.socket