Math note-taking app with handwriting-to-LaTeX recognition. 11 calculator modes including graphing, 3D plots, matrices, vectors, unit circle, symbolic solver, and truth tables. Snip any equation to solve, graph, convert to LaTeX, or save as a definition, theorem, or formula in your knowledge library. Browse saved concepts in a knowledge graph. Built-in periodic table, formula reference, and AI tutor. PDF import and export for a full handwritten note-taking experience.