Graduate StudentContact Informationyyang1@uw.eduYirong Yang's WebsitePDL C-446 Fields of Interest AlgebraCombinatorics Courses Taught Autumn 2023 MATH 125 DC: Calculus with Analytic Geometry II Winter 2023 MATH 125 CC: Calculus with Analytic Geometry II MATH 125 CD: Calculus with Analytic Geometry II Autumn 2022 MATH 124 IA: Calculus with Analytic Geometry I Spring 2022 MATH 125 BA: Calculus with Analytic Geometry II MATH 125 BB: Calculus with Analytic Geometry II Winter 2022 MATH 124 CE: Calculus with Analytic Geometry I Autumn 2021 MATH 124 CE: Calculus with Analytic Geometry I MATH 124 CF: Calculus with Analytic Geometry I News & Events Related Events Graduate Student Seminars: 1-2-3 Seminar: Many Spheres in the Join of Paths (Yirong Yang, University of Washington) - February 24, 2023 - 2:30pm to 3:20pm