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    18229443
    LocalADOLCStiffness: use "hessian2" instead of "hess_vec" · 18229443
    Patrick Jaap authored
    With this commit, we do two things:
    
    -  replace "hess_vec" with a simpler call of  "hessian" which
       calls internally "hess_vec".
    
    - use "hessian2" by default instead of "hessian". "hessian2" calls
      internally "hess_mat" which is faster than "hessian/hess_vec".
      If the user encounters probems with the new "hessian2" driver, a
      boolean "useHessian2" can be set to false in the constructor.
    18229443
    History
    LocalADOLCStiffness: use "hessian2" instead of "hess_vec"
    Patrick Jaap authored
    With this commit, we do two things:
    
    -  replace "hess_vec" with a simpler call of  "hessian" which
       calls internally "hess_vec".
    
    - use "hessian2" by default instead of "hessian". "hessian2" calls
      internally "hess_mat" which is faster than "hessian/hess_vec".
      If the user encounters probems with the new "hessian2" driver, a
      boolean "useHessian2" can be set to false in the constructor.
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