Definition & Betydelse | Engelska ordet ELLIPSOID

Definition av ELLIPSOID

1. ellipsformad, elliptisk
2. (matematik) ellipsoid

Exempel på hur man kan använda ELLIPSOID i en mening

• In any ellipsoid, the length of a degree of longitude at the equator is exactly 60 geographical miles.
• A topographic map series uses a common specification that includes the range of cartographic symbols employed, as well as a standard geodetic framework that defines the map projection, coordinate system, ellipsoid and geodetic datum.
• A spheroid, also known as an ellipsoid of revolution or rotational ellipsoid, is a quadric surface obtained by rotating an ellipse about one of its principal axes; in other words, an ellipsoid with two equal semi-diameters.
• While too small to notice visually, that difference is still more than twice the largest deviations of the actual surface from the ellipsoid, including the tallest mountains and deepest oceanic trenches.
• An ellipsoid is a surface that can be obtained from a sphere by deforming it by means of directional scalings, or more generally, of an affine transformation.
• The International Union of Geodesy and Geophysics (IUGG) provides three reference values: the mean radius (R) of three radii measured at two equator points and a pole; the authalic radius, which is the radius of a sphere with the same surface area (R); and the volumetric radius, which is the radius of a sphere having the same volume as the ellipsoid (R).
• The geoid is often expressed as a geoid undulation or geoidal height above a given reference ellipsoid, which is a slightly flattened sphere whose equatorial bulge is caused by the planet's rotation.
• This conclusion suggests not only that the Earth is of an oblate ellipsoid shape, but it is flattened more at the poles and is wider at the centre.
• However, if the energy release from these processes halts, then they tend to erode away over time and return toward the lowest potential-energy curve of the ellipsoid.
• Better approximations can be made by modeling the entire surface as an oblate spheroid, using spherical harmonics to approximate the geoid, or modeling a region with a best-fit reference ellipsoid.
• They are usually up to in length, ovoid, globose, or ellipsoid, and yellowish-white to pale purple, and borne on a short peduncle.
• Spores: white in deposit, smooth, broadly ellipsoid to ellipsoid to elongate, inamyloid, infrequently globose.
• The theoretical gravity value at a location is computed by representing the Earth as an ellipsoid that approximates the more complex shape of the geoid.
• These include the sphere, where the three semi axes are equal; the oblate (see reference ellipsoid) and prolate spheroids, where two semi axes are equal; the degenerate ones where one semi axes is infinite (the elliptical and circular cylinder) and the unbounded sheet where two semi axes are infinite.
• The asteroid is not a dwarf planet: there are at least two promontories and at least one flat facet with 15-km deviations from a best-fit ellipsoid.
• The spore print is white, the spores (under a microscope) smooth, inamyloid, ellipsoid to cylindrical, c.
• Adopting instead a spheroidal or ellipsoid model of Earth, the meridian is half of a north-south great ellipse.
• They do still have a puparium with a circular emergence opening, but it is not as precisely ellipsoid in shape as is typical for other muscoids.
• The geometrical separation between it and the reference ellipsoid is called the geoidal undulation, or more usually the geoid-ellipsoid separation, N.
• Putting this on a mathematical basis, the ellipsoid that best represents the set's probability distribution can be estimated by building the covariance matrix of the samples.

Förberedelsen av sidan tog: 178,53 ms.