- Also orthographic. pertaining to or involving right angles or perpendiculars: an orthogonal projection.
- (of a system of real functions) defined so that the integral of the product of any two different functions is zero.
- (of a system of complex functions) defined so that the integral of the product of a function times the complex conjugate of any other function equals zero.
- (of two vectors) having an inner product equal to zero.
- (of a linear transformation) defined so that the length of a vector under the transformation equals the length of the original vector.
- (of a square matrix) defined so that its product with its transpose results in the identity matrix.
Origin of orthogonal
Examples from the Web for orthogonal
Actually, the issue of plural vs. singular is orthogonal to the dilemma she wants to pose.Responding To Critics Of "On Questioning The Jewish State"|Joseph Levine|March 18, 2013|DAILY BEAST
And that brings up another question about those bacterial targets, the ones that are so orthogonal to human cellular pathways.Worried About Incurable Tuberculosis? Stand By for Incurable Everything.|Megan McArdle|March 12, 2013|DAILY BEAST
The involutes are “orthogonal trajectories” of the tangents to the common evolute.
In the first place, each of these figures may be conceived as an orthogonal projection of a closed plane-faced polyhedron.
Velocities in linkages were determined by orthogonal components transferred from link to link.Kinematics of Mechanisms from the Time of Watt|Eugene S. Ferguson
British Dictionary definitions for orthogonal
- (of a pair of vectors) having a defined scalar product equal to zero
- (of a pair of functions) having a defined product equal to zero
Word Origin and History for orthogonal
1570s, from French orthogonal, from orthogone, from Late Latin orthogonius, from Greek orthogonios "right-angled," from ortho- "straight" (see ortho-) + gonia "angle," related to gony "knee" (see knee (n.)). Related: Orthogonally.