ironfern/docs
Interactive reference materials by ironfern — theory, worked examples, and live graphs, all in one place.
Sections
Algebra
Quadratic functions, linear systems, inequalities. Interactive graphs powered by Mafs.
Geometry
Solving triangles, regular polygons, trigonometry, and area formulas.
Physics soon
Mechanics, optics, and more — coming later.
CS soon
Algorithms, data structures, systems programming.
How it works
Each lesson has theory, worked examples, and interactive graphs. Drag sliders, change parameters, and see the math move.
Math is typeset with KaTeX. All interactive elements use Mafs . Switch language in the top-right corner: English / Українська.