orthogonal complement
(redirected from M perp)orthogonal complement
[ȯr′thäg·ən·əl ′käm·plə·mənt] (mathematics)
In an inner product space, the orthogonal complement of a vectorvconsists of all vectors orthogonal tov; the orthogonal complement of a subset S consists of all vectors orthogonal to each vector in S.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.