Note

This website is presently under development. The primary website for MOPAC is still http://openmopac.net until the majority of its contents have been migrated here.

CUTOFS

`MOZYME <mozyme.html>`__ calculations run somewhat faster when some overlap integrals are ignored.  By default, all overlap integrals involving atoms separated by 7.0 Ångstroms or more are ignored. For rough work, such as optimizing a structure that is far from a minimum, if CUTOFS=n.nn is used, then overlap integrals involving atoms separated by n.nn Ångstroms or more will be ignored.

A significant increase in speed and reduction in memory can be obtained using `CUTOFP= <cutofp.html>`__n.nn.

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