Graphing software for maths textbooks

[Lobot]

What software is typically used for creating graphs in mathematics textbooks? I’m looking at doing tangents to parabolas and that sort of thing.

[spingears]

@Lobot

What software is typically used for creating graphs in mathematics textbooks? I’m looking at doing tangents to parabolas and that sort of thing.

You might try these: “Graphmatica”
“GnuPlot”
“Mvgraph”