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Open-source C++ implementation of the IAPWS-IF97 equations

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Formulas for the meta-stable states just inside the vapor dome are provided in [IAPWS R7-97(2012)](http://www.iapws.org/relguide/IF97-Rev.html), the "_Revised Release on the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water...

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A generic routine could be written for thermodynamic derivatives of any two property pairs as is done in CoolProp and RefProp. The generic formulas for such a function based on...

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help-wanted
beginner
wishlist

A PH specification in region 5 throws an exception, because the pX region determination does not consider region 5.

- visual studio 2022 community edition - Windows 11 Pro 23H2 I get the warning message when I build my Code in visual studio. The result is same whatever I...

First of all, thank you for providing this very useful software! What I have noticed is that (at least) for the functions `hmass_Tp` and `smass_Tp`, it is possible to pass...

Hi `CoolProp/IF97`! This is a one-off automatically generated pull request from LGTM.com :robot:. You might have heard that we’ve integrated LGTM’s underlying CodeQL analysis engine natively into GitHub. The result...