[permalink] [id link]

Spherical errors occur when errors have both uniform variance ( homoscedasticity ) and are uncorrelated with each other.

from
Wikipedia

## Some Related Sentences

Spherical and errors

*

__Spherical____errors__**occur****when**the optical power of the eye is either too large or too small to focus light on the retina**.**

Spherical and when

__Spherical__concave backing surfaces support the diaphragm

__when__excessive pressures

**are**applied

**and**prevent the stresses within the diaphragm from exceeding the elastic limit

**.**

__Spherical__aberration occurs due to the increased refraction of light rays that occurs

__when__rays strike a lens, or a reflection of light rays that occurs

__when__rays strike a mirror near its edge in comparison

**with**those that strike nearer the center

**.**

Spherical and have

__Spherical__objects

**with**this surface area

__have__a radius or diameter in the range 89, 000 km to 564, 000 km

**.**

__Spherical__triangle groups can be identified

**with**the symmetry groups of regular polyhedra in the three-dimensional Euclidean space: Δ

**(**2, 3, 3

**)**corresponds to the tetrahedron, Δ

**(**2, 3, 4

**)**to

**both**the cube

**and**the octahedron

**(**which

__have__the same symmetry group ), Δ

**(**2, 3, 5

**)**to

**both**the dodecahedron

**and**the icosahedron

**.**

Spherical and are

__Spherical__mechanisms

__are__constructed by connecting links

**with**hinged joints such that the axes of

**each**hinge passes through the same point

**.**

__Spherical__coordinates, projected on the celestial sphere,

__are__analogous to the geographic coordinate system used on the surface of the Earth

**.**

__Spherical__waves

__are__waves whose amplitude depends only upon the radial distance r from a central point source

**.**

__Spherical__geometry obeys two of Euclid's postulates: the second postulate (" to produce a finite straight line continuously in a straight line ")

**and**the fourth postulate (" that all right angles

__are__equal to one another ").

__Spherical__harmonics

__are__important in many theoretical

**and**practical applications, particularly in the computation of atomic orbital electron configurations, representation of gravitational fields, geoids,

**and**the magnetic fields of planetary bodies

**and**stars,

**and**characterization of the cosmic microwave background radiation

**.**

__Spherical__mirrors

__are__easier to make than parabolic mirrors

**and**they

__are__often used to produce approximately collimated light

**.**

__Spherical__codes

__are__higher-dimensional analogues of Tammes problem, which arose as an attempt to explain the distribution of pores on pollen grains

**.**

which regular solutions for positive energies

__are__given by so-called Bessel functions of the first kind ' so that the solutions written for R__are__the so-called__Spherical__Bessel function__Spherical__coordinates

__are__one of the most used curvilinear coordinate systems in such fields as Earth sciences, cartography,

**and**physics

**(**in particular quantum mechanics, relativity ), engineering, etc

**.**

__Spherical__tokamaks

__are__not limited by the same instabilities as tokamaks

**and**as such the area is receiving considerable experimental attention

**.**

__Spherical__astronomy is the branch of astronomy that is concerned

**with**where celestial objects

__are__located

**and**how they move on the celestial sphere

**.**

__Spherical__groups

**with**a radially fibrous structure

**and**bristled

**with**crystals on the surface

__are__not uncommon

**.**

Spherical and with

** M

**.**C**.**Escher used special shapes of mirrors in order to achieve a much more complete view of his surroundings than by direct observation in Hand__with__Reflecting Sphere**(**also known as Self-Portrait in__Spherical__Mirror ).__Spherical__geometry is not elliptic geometry but shares

__with__that geometry the property that a line has no parallels through a given point

**.**

Early in 1942, Wallis began experimenting

__with__skipping marbles over water tanks in his garden, leading to his April 1942 paper "__Spherical__Bomb — Surface Torpedo ".__Spherical__harmonics were first investigated in connection

__with__the Newtonian potential of Newton's law of universal gravitation in three dimensions

**.**

Along

__with__her test she was required to take courses showing broader knowledge as well as prepare a thesis which was entitled Algebraic Groups of__Spherical__Trigonometry**.**__Spherical__buildings arise in two quite different ways in connection

__with__the affine building X for SL < sub > n </ sub >( Q < sub > p </ sub >):

His publications include "

__Spherical__Gravitational Waves "**(**a collaboration__with__Peter Bergmann, former research assistant to Albert Einstein ), " Contributions to the Quantization Problem in General Relativity ",**and**" The Normal Modes Of A Hanging Oscillator Of Order N ".__Spherical__trigonometry is a branch of spherical geometry which deals

__with__polygons

**(**especially triangles

**)**on the sphere

**and**the relationships between the sides

**and**the angles

**.**

* Wolfram's mathworld:

__Spherical__Trigonometry a more thorough list of identities,__with__some derivation
As an inventor, Sperling created,

__with__Mike Simmons, the Astroscan telescope for Edmund Scientific, as well as " The Stars Above " star-finder for__Spherical__Concepts**.**
Still Life

__with____Spherical__Mirror is a lithography print by the Dutch artist M**.**C**.**Escher which was first printed in November, 1934**.**
Hand

__with__Reflecting Sphere also known as Self-Portrait in__Spherical__Mirror is a lithograph print by Dutch artist M**.**C**.**Escher, first printed in January 1935**.**0.149 seconds.