orthogonal


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orthogonal

[ȯr′thäg·ən·əl]
(computer science)
An area of a computer display in which units of distance are the same horizontally and vertically so that there is no distortion.
A viewing area in which positions are determined by using a cartesian coordinate system with horizontal and vertical axes.
(mathematics)
Perpendicular, or some concept analogous to it.

orthogonal

(geometry)
At 90 degrees (right angles).

N mutually orthogonal vectors span an N-dimensional vector space, meaning that, any vector in the space can be expressed as a linear combination of the vectors. This is true of any set of N linearly independent vectors.

The term is used loosely to mean mutually independent or well separated. It is used to describe sets of primitives or capabilities that, like linearly independent vectors in geometry, span the entire "capability space" and are in some sense non-overlapping or mutually independent. For example, in logic, the set of operators "not" and "or" is described as orthogonal, but the set "nand", "or", and "not" is not (because any one of these can be expressed in terms of the others).

Also used loosely to mean "irrelevant to", e.g. "This may be orthogonal to the discussion, but ...", similar to "going off at a tangent".

See also orthogonal instruction set.

orthogonal

At right angles. The term is used to describe electronic signals that appear at 90 degree angles to each other. It is also widely used to describe conditions that are contradictory, or opposite, rather than in parallel or in sync with each other.
References in periodicals archive ?
The scores based on the orthogonal radiographs and the photographs of the segmented roots (42 cases) were compared and differences for parameters 2 and 4, respectively were tested using Wilcoxon signed-rank test, whereas the percentage agreement between the scores was calculated for parameter 1.
In complex orthogonal design, cannot get full rate and full diversity STBC for more than two antennas.
Here [mathematical expression not reproducible] is the volume of the orthogonal group; see Muirhead [1].
n](t) form a set of complete orthogonal bases in complete Hilbert space and satisfy [mathematical expression not reproducible], in which [[delta].
i](t) can represent inverse Laplace transforms of the Legendre orthogonal rational functions [L.
Is clear that when k = 1, an orthogonal system is a permutation polynomial.
It is important to note that there exist exactly six classes, up to a linear change of variable, of the classical orthogonal polynomials [22, page 93].
a) shift perturbation of the reflection coefficients of the orthogonal polynomials (see [23]);
1] 1 x 1 orthogonal matrix and P0 2 is a (k + 1) [[lambda].
Key words: ventricular tachycardia, repolarization, depolarization, orthogonal component of repolarization
The use of the same part numbers for both standard and orthogonal architectures by providing the option to rotate the headers 90[degrees] on 1 side of the midplane.
Two separate blocks, one conventionally orthogonal and the other cranked into an aerodynamic prow, are linked and penetrated by internal bridges and routes that break up floorplates into a series of corporate communities.