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Unofficial and not affiliated with Duke. A snapshot of classes that were open on 22 Oct 2026. Seats change daily, so confirm in DukeHub before you plan around anything.

Courses / Undergraduate / MATH

MATH 221D · also MATH 721D

Linear Algebra

Leslie D. Saper, Danielle Wang

Description from DukeHub

Systems of linear equations and elementary row operations, Euclidean n-space and subspaces, linear transformations and matrix representations, Gram-Schmidt orthogonalization process, determinants, eigenvectors and eigenvalues; applications. Introduction to proofs. A gateway to more advanced math courses. Not open to students who have taken Mathematics 216 or 218. Recommended prerequisite: Mathematics 122, 112L or 122L.

Skills

AI-resilient: 0 of 5

  • No: Physical, lab or field work
  • No: Live work with people
  • No: Judgment someone is accountable for
  • No: A craft you practice with your hands or body
  • No: Small, in-person format

The checks lean on Microsoft Research, Working with AI (2025), which found generative AI applies least to physical work and hands-on work with people. A signal, not a promise. How the score works

More in MATH

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