There was a download of Functy 0.35 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. Functy.exe is the most frequent filename for this program's installer.
The following versions: 0.3 and 0.2 are the most frequently downloaded ones by the program users. This PC software works fine with 32-bit versions of Windows 7/8/10/11.
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. The actual developer of the free program is David Llewellyn-Jones. The program lies within Photo & Graphics Tools, more precisely Viewers & Editors.
From the developer:
Functy is an open-source cross-platform graph drawing application. It uses the Symbolic library to allow functions to be interpreted algebraically. This means that functions are kept in the symbolic algebraic form throughout the process, right up until the function needs to be displayed on screen. This provides a number of benefits, foremost of which is accuracy.
You may want to check out more software, such as Panorama Maker, OB WMP11 or Focusviewer, which might be similar to Functy.