ickly
see the &quot;minimize&quot; command for what constraints are allowed for use
  with the minimizer
see the &quot;respa&quot; command for how constraints are applied when rRESPA
  timestepping is enabled

Default = none
</PRE>
<HR>
<H3>
<A NAME="_cch3_999724473">improper coeff </A></H3>
<UL>
    <LI>
    1st parameter = improper type # 
    <LI>
    2nd-Nth parameters = coeffs 1 to N-1 
</UL>
<PRE>
coeffs:   harmonic
               (1) K (energy units)
               (2) chi (degrees)
          cvff
  