polar coordinates


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Related to polar coordinates: Spherical coordinates

polar coordinates

pl n
(Mathematics) a pair of coordinates for locating a point in a plane by means of the length of a radius vector, r, which pivots about the origin to establish the angle, θ, that the position of the point makes with a fixed line. Usually written (r, θ). See also Cartesian coordinates, spherical coordinates

po′lar coor′dinates


n.pl.
two coordinates for locating a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis.
[1810–20]

polar coordinates

1. Coordinates derived from the distance and angular measurements from a fixed point (pole).
2. In artillery and naval gunfire support, the direction, distance, and vertical correction from the observer/spotter position to the target.
References in periodicals archive ?
Convert to polar coordinates to see that again they are equal.
Log-Polar transform is to transform an image from Cartesian Coordinates (x, y) to Polar coordinates (y, [theta]) first, then to Log coordinates ([rho], [theta]).
The topics are fundamentals, the unit-circle and right-angle approaches to trigonometric functions, analytic trigonometry, polar coordinates and parametric equations, vectors in two and three dimensions, conic sections, and exponential and logarithmic functions.
On the 14th of July 2009 the paper entitled: The dynamic bi-Laplacian Equation in polar coordinates and the magic numbers of atomic nucleus [1] was published online on the Physics Essays website.
If t is parametrized by its spherical polar coordinates ([phi], [theta]), [phi][member of][0,2[pi]), [theta][member of][0, [pi]/2], then dt = sin[theta]d[phi]d[theta].
However, higher order compact schemes (HOCSs) are seldom applied to flow problems in curvilinear coordinate systems such as cylindrical and spherical polar coordinates except in [13,14,16,19], where compact fourth-order schemes in cylindrical polar coordinates were developed.
With a growing azimuth direction angle of the polar coordinates it converges to the origin of the coordinate system without ever reaching it.
The temperature field must be expressed in polar coordinates from the center of any pipe m (Figure 2):
Technicians in fields such as electronics, mechanical design, and machine tool technology must work daily with mathematical functions such as polynomials, trigonometry, logarithmic functions, and polar coordinates.
After a review of functions, coverage progresses from limit of a function through derivatives and applications, integrals and applications, techniques of integration, first-order differential equations, sequences and series, and conics and polar coordinates.