different between isotropic vs homothety
isotropic
English
Etymology
From iso- +? -tropic, from Ancient Greek ???? (ísos, “equal”) + ???????? (tropikós, “of or pertaining to a turn or change; or the solstice; or a trope or figure; tropic; tropical; etc.”).
Adjective
isotropic (not comparable)
- (physics) Having properties that are identical in all directions; exhibiting isotropy
- (mathematics) Having the same components in all rotated coordinate systems
Antonyms
- anisotropic
Related terms
- coisotropic
- isotrope
- isotropism
- isotropy
- semiisotropic
Translations
See also
- omnidirectional
Further reading
- isotropic in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
- isotropic in The Century Dictionary, New York, N.Y.: The Century Co., 1911.
- isotropic at OneLook Dictionary Search
isotropic From the web:
- what isotropic means
- what isotropic crystal
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- isotropic what does mean
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homothety
English
Etymology
From Ancient Greek ???- (homo-, “same”) + ????? (thésis, “setting, placement, arrangement”).
Noun
homothety (plural homotheties)
- (mathematics, geometry) An isotropic scaling transformation of an affine space with a single fixed point.
- 1972, Clayton W. Dodge, Euclidean Geometry and Transformations, 2004, page 106,
- One cannot obtain all similarity mappings from products of homotheties alone, but they are necessary and basic to similarities.
- 2011, Agustí Reventós Tarrida, Affine Maps, Euclidean Motions and Quadrics, Springer Undergraduate Mathematics Series, page 69,
- Since homotheties are determined by the fixed point, called the center of the homothety, and by the similitude ratio ?, we shall denote by hP,? the homothety with center P and similitude ratio ?.
- 1972, Clayton W. Dodge, Euclidean Geometry and Transformations, 2004, page 106,
Synonyms
- (isotropic scaling transformation with a fixed point): homothecy, homogeneous dilation, homothetic transformation
Related terms
- homothetic
Translations
homothety From the web:
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