`The default minimizer uses a sophisticated conjugate gradient and
line search algorithm with much better performance than the older
velocity quenching method.
The method of conjugate gradients is used to select successive search
directions (starting with the initial gradient) which eliminate
repeated minimization along the same directions.
Along each direction, a minimum is first bracketed (rigorously bounded)
and then converged upon by either a golden section search, or, when
possible, a quadratically convergent method using gradient information.
`

`For most systems, it just works.
`

Perform conjugate gradient energy minimization?`minimization`**Acceptable Values:**`on`or`off`**Default Value:**`off`**Description:**Turns efficient energy minimization`on`or`off`.first initial step for line minimizer`minTinyStep`**Acceptable Values:**positive decimal**Default Value:**1.0e-6**Description:**If your minimization is immediately unstable, make this smaller.max initial step for line minimizer`minBabyStep`**Acceptable Values:**positive decimal**Default Value:**1.0e-2**Description:**If your minimization becomes unstable later, make this smaller.gradient reduction factor for line minimizer`minLineGoal`**Acceptable Values:**positive decimal**Default Value:**1.0e-4**Description:**Varying this might improve conjugate gradient performance.

`You can perform energy minimization using a simple quenching
scheme. While this algorithm is not the most rapidly convergent, it
is sufficient for most applications. There are only two parameters
for minimization: one to activate minimization and another
to specify the maximum movement of any atom.
`

Perform old-style energy minimization?`velocityQuenching`**Acceptable Values:**`on`or`off`**Default Value:**`off`**Description:**Turns slow energy minimization`on`or`off`.maximum distance an atom can move during each step (Å)`maximumMove`**Acceptable Values:**positive decimal**Default Value:**`cutoff``stepsPerCycle`**Description:**Maximum distance that an atom can move during any single timestep of minimization. This is to insure that atoms do not go flying off into space during the first few timesteps when the largest energy conflicts are resolved.