Description of functions for calculation of properties of water and steam in WaterSteamPro

All WaterSteamPro functions uses base units from the SI unit system: pascal, kelvin, joule, kilogramm, meter, second. Additional capabilities of using units has program Mathcad of the MathSoft Engineering & Education, Inc.

Most of the functions (except for some system functions) have double type of arguments and results (a real number with double precision).

In case of error, all functions return the value -1 (minus one). The function "wspGETLASTERROR()" allows to analyze a code of an error. An error code is saved until another function is called, except for the system functions.

The function names in WaterSteamPro are unified (they have identical names in different programs) and are generated according the following rules:

String descriptors of quantities and dimensions in the SI unit system are listed below:

Descriptors of regions and condition of water: