def L(self):
        """
        Lower-triangular matrix L such that K = LLᵀ + ϵI.

        Returns
        -------
        L : (d, d) ndarray
            Lower-triangular matrix.
        """
        m = len(self._tril1[0])
        self._L[self._tril1] = self._Lu.value[:m]
        self._L[self._diag] = exp(self._Lu.value[m:])
        return self._L
def L(self):
        """
        Lower-triangular matrix L such that K = LLᵀ + ϵI.

        Returns
        -------
        L : (d, d) ndarray
            Lower-triangular matrix.
        """
        m = len(self._tril1[0])
        self._L[self._tril1] = self._Lu.value[:m]
        self._L[self._diag] = exp(self._Lu.value[m:])
        return self._L
def L ( self ) : m = len ( self . _tril1 [ 0 ] ) self . _L [ self . _tril1 ] = self . _Lu . value [ : m ] self . _L [ self . _diag ] = exp ( self . _Lu . value [ m : ] ) return self . _L
Lower-triangular matrix L such that K = LLᵀ + ϵI.

        Returns
        -------
        L : (d, d) ndarray
            Lower-triangular matrix.
Lower - triangular matrix L such that K = LLᵀ + ϵI .