Course resourceGeneral · Undergraduate
Sixteen Tiles, One Kolam Puzzle
A classroom-ready investigation using binary tiles to explore local constraints, connectivity and sliding-puzzle invariants.
Working material
Notes
These notes were written up as lecture review notes, worksheets and handouts as part of courses, mathematical talks and workshops.
Caution: These notes might contain errors and the revised notes will be reposted regularly.
Combinatorics
Linear Algebra
Expository noteUndergraduate
What Row Reduction Remembers
A geometric reading of row reduction: why RREF remembers the row space, how elimination moves through a pencil of lines, and what survives for arbitrary linear systems.