 exists)
can be used after the &quot;read data&quot; command to change the style,
  in this case &quot;bond coeff&quot; commands must also be used to set new
  coefficients for each bond type (unless the new style is &quot;none&quot;)
coefficients for all bond types must be defined in the data (or restart)
  file by a &quot;Bond Coeffs&quot; entry or by &quot;bond coeff&quot;
  commands before a run is performed

Default = harmonic
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<A NAME="_cch3_931276588">comments </A></H3>
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