:term:`CFOUR_TRANS_INV <CFOUR_TRANS_INV (CFOUR)>`
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      Specifies whether or not translational invariance is exploited in geometrical derivative calculations. USE(=0) specifies that translational invariance is exploited, while IGNORE (=1) turns it off.

      * **Type**: string
      * **Possible Values**: USE, IGNORE
      * **Default**: USE