Download of Hydrognomon 4.1.0.26 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The software lies within Education Tools, more precisely Science Tools. The most popular versions of the program 4.1 and 4.0.
We cannot guarantee that the program is safe to download as it will be downloaded from the developer's website. Before launching the program, check it with any free antivirus software. This free software was originally developed by National Technical University of Athens. You can set up this free PC software on Windows XP/Vista/7/8/10/11 32-bit. The Hydrognomon installer is commonly called hydrognomon.exe.
From the developer:
Hydrognomon is a free software application for the analysis and processing of hydrological data, mainly in the form of time series. It is provided under the terms of the GNU GPLv3 License. Hydrognomon is part of the openmeteo.org framework, where source code can be obtained. Hydrognomon has been developed mainly to serve the research activities of the ITIA research group which is responsible for the design and maintenance of the software.
You may want to check out more software, such as DeadLine, ChaosPro or Equation Wizard, which might be related to Hydrognomon.