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 # PyFENG: Python Financial ENGineering
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+[![Documentation Status](https://readthedocs.org/projects/pyfeng/badge/?version=latest)](https://pyfeng.readthedocs.io/en/latest/?badge=latest)
 
 PyFENG is the python implemention of the standard option pricing models in financial engineering.
   * Black-Scholes-Merton (and displaced diffusion)