TODO
====

ponchon-savarit 1.0.0 (2023-05-17)
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* Major changes on functions and documentation
* stages modified to accept any combination
  of two parameters among the feed quality,
  the reflux ratio at the top of the column or
  the reflux ratio at the bottom of the column
* New functions qS2R and RS2q

ponchon-savarit 0.1.3 (2022-12-06)
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* Bug fixed at refmin function

ponchon-savarit 0.1.2 (2022-12-03)
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* Minor changes on documentation
* Help comments included for internal functions
* Number of stages fixed do the Ponchón-Savarit method

ponchon-savarit 0.1.1 (2022-10-21)
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* Major changes on functions
* Minor changes on documentation

ponchon-savarit 0.1.0 (2022-10-16)
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* First release
* Package under construction
