:term:`CFOUR_ESTATE_CONV <CFOUR_ESTATE_CONV (CFOUR)>`
"""""""""""""""""""""""""""""""""""""""""""""""""""""

      Specifies the threshold used in converging CC-LR/EOM-CC calculations. The iterative diagonalization is continued until the RMS residual falls below :math:`10^{-N}` with :math:`N` as the value specified with this keyword.

      * **Type**: integer
      * **Default**: 5

