Explore the Stern-Brocot tree's matrix and geometrical representations in this 34-minute mathematics video. Delve into 2x2 matrices, determinants, and basic operations before examining a novel planar representation of the tree using visible integral points in the positive quadrant. Discover the role of the pseudo-fraction 1/0 in tree generation and learn about the theory of wedges, which combines matrix and geometrical forms to create a unique tesselation of the visible positive quadrant. Gain insights into moving smoothly down the tree and understand the relationship between matrices, fractions, and geometrical structures in this advanced exploration of number theory and linear algebra.