Perpendicularity


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Perpendicularity

 

Two lines are said to be perpendicular if they form a right angle; in space, such lines need not necessarily intersect. A line l and a plane p are perpendicular if l is perpendicular to every line lying in p. Two planes are perpendicular if they intersect to form a right dihedral angle. Orthogonality is a more general, and sometimes synonymous, concept of perpendicularity.

References in periodicals archive ?
The aim of this paper is to determine the optimal plasma cutting parameters for minimizing surface roughness, kerf width and cut perpendicularity. The mean values of the surface roughness parameter Rz, kerf width and cut perpendicularity are given in Table 6.
The application of PT zone is recommended where the variation in perpendicularity of threaded or press-fit holes could cause fasteners to interfere with mating parts.
Hole perpendicularity error is a kind of manufacturing defects, which results in stress concentration around hole edge area.
Measuring tasks on shaft elements, for example, can include cylinder form, straightness, parallelism, roundness, perpendicularity, and total radial and axial runout.
Dhanabalan et al [10] studied the influence of process parameters on form tolerances such as cylindricity, circularity, perpendicularity, and parallelism.
Each planet's geographical features--the striking "perpendicularity" of Malacandra and the waves of the water world Perelandra--are at first glance very different.
Vector (cross) products assured coordinate axis perpendicularity, defining a Cartesian coordinate system.
The authors have organized the main body of their text in thirteen chapters devoted to basic engineering drawing definitions and practices, perspective and sectional views, geometric constructions, descriptive geometry, parallelism and perpendicularity, and a wide variety of other related subjects.
The perpendicularity between the aristotelian proton kinoun and the concepts of divinity and absolute Nothingness.
It believes more in perpendicularity, thirdness, and ego-loss than egocentric transitivity.