ne

<A HREF="#_cch3_931277020">dihedral style</A>         none
<A HREF="#_cch3_931277020">dihedral style</A>         harmonic
<A HREF="#_cch3_931277020">dihedral style</A>         mutliharmonic
<A HREF="#_cch3_931277020">dihedral style</A>         class2
<A HREF="#_cch3_931277020">dihedral style</A>         charmm

<A HREF="#_cch3_931277042">improper style</A>         none
<A HREF="#_cch3_931277042">improper style</A>         harmonic
<A HREF="#_cch3_931277042">improper style</A>         cvff
<A HREF="#_cch