The 1.1 version of FlatGraph is provided as a free download on our website. The software relates to Education Tools. The most popular version among FlatGraph users is 1.1. This free software is a product of Vitaliy Subbotin.
From the developer:
Developer's description:
Plotting functions (usual and parametric) with more possibilities.
New review:
Plotting functions (usual and parametric) with more possibilities. Differentiation of any order (with simplification). Construction of tangents to the graph. The simple and clear interface with the detailed documentation and examples of work.
You may want to check out more software, such as QPlot, GenealogyJ or Lapackpp, which might be similar to FlatGraph.