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As ``Frequency of energy printout'' you specify after how many steps energy
information is printed to the display and to the EGO-output
files. Due to the approximation algorithm used for long range forces
the electrostatic and van der Waals energy is not calculated explicitly
in every integration step. Such integration steps
are flaged with a negative integration step number.
A negative value of -*n* for `Step of energy printout' selects every *n*-th
integration step to be print outed. A positive value of *n* selects only the
next integration step after the *n*-th positve integration step. Zero leads to
no energy printout at all.

*Helmut Heller *

2000-04-19