This software is a Chemical Engineering Utility for easily lookup in steam tables and Water properties table.
The software automatically interpolates depending on the inputs given,
This software contains two saturated steam tables, one that depends on Temperature and the other that depends on Pressure. These tables use Linear interpolation since it only depends on one Variable
The water properties table is for looking up properties of compressed liquid water, superheated steam and supercritical fluid
This table uses Double Linear Interpolation because the properties depend on both Temperature and Pressure.
The Intepolation is highly inaccurate if it is occuring between different phases as such it returns the closest properties to the provided values of Temperature and Pressure avoiding interpolating them.