.. _BAR: BAR === **no value** **1 real value** real value 1 value: 1. The maximum fraction **SYNTAX** : ``BAR=x`` ===== ==== =============================================================== ``BAR=x`` -------------------------------------------------------------------------- name type description ===== ==== =============================================================== ``x`` real maximum fractional geometric change per iteration in ``SADDLE`` ===== ==== =============================================================== In the ``SADDLE`` calculation [`18 `__], the distance between the two geometries is steadily reduced until the transition state is located. Sometimes, however, the user may want to alter the maximum rate at which the distance between the two geometries reduces. BAR is a ratio, normally 0.01, or 1 percent. This represents a maximum rate of reduction of the bar of 1 percent per step. Alternative values that might be considered are ``BAR=0.005`` or ``BAR=0.001``, although other values may be used. See also ``SADDLE``. If CPU time is not a major consideration, use ``BAR=0.001``.