Editing Geometric algebra (section)

=== 20th century and present ===
Progress on the study of Clifford algebras quietly advanced through the twentieth century, although largely due to the work of [[abstract algebra]]ists such as [[Élie Cartan]], [[Hermann Weyl]] and [[Claude Chevalley]]. The ''geometrical'' approach to geometric algebras has seen a number of 20th-century revivals. In mathematics, [[Emil Artin]]'s ''Geometric Algebra''{{sfn|ps=|Artin|1988}} discusses the algebra associated with each of a number of geometries, including [[affine geometry]], [[projective geometry]], [[symplectic geometry]], and [[orthogonal geometry]]. In physics, geometric algebras have been revived as a "new" way to do classical mechanics and electromagnetism, together with more advanced topics such as quantum mechanics and gauge theory.{{sfn|ps=|Doran|1994}} [[David Hestenes]] reinterpreted the [[Pauli matrices|Pauli]] and [[Gamma matrices|Dirac]] matrices as vectors in ordinary space and spacetime, respectively, and has been a primary contemporary advocate for the use of geometric algebra.

In [[computer graphics]] and robotics, geometric algebras have been revived in order to efficiently represent rotations and other transformations. For applications of GA in robotics ([[screw theory]], kinematics and dynamics using versors), computer vision, control and neural computing (geometric learning) see Bayro (2010).