With the new portable SmathStudio (SMath 98.6179) from the webside https://extmoodle.th-brandenburg.de/login I got an error with the Plugin Steamtables.dll and the function T_ph (Temperture as a function of pressure and enthalpy). See attachment.Error_T_ph.sm(5 КиБ) скачан 32 раз(а). The steamtables are from the webside http://www.cdejonge.com/steamtables.html. Many thanks for any remarks!