anallagmaticadj.

Brit.

/ˌanəlaɡˈmatɪk/, U.S.

/ˌænəˌlæɡˈmædɪk/

Origin: A borrowing from Greek, combined with English elements; modelled on a French lexical item. Etymons: an- prefix², Greek ἀλλαγματ- , ἄλλαγμα , -ic suffix.

Etymology: < an- prefix² + ancient Greek ἀλλαγματ-, ἄλλαγμα something given in exchange ( < the stem of ἀλλάσσειν to change, exchange (see allactite n.) + -μα : see -oma comb. form) + -ic suffix, after French anallagmatique (T. Moutard 1864, in Nouvelles ann. de math. 3 307).

Mathematics.

1. Of a surface or curve: not changed in form by inversion (inversion n. 23).Examples of anallagmatic curves are the cardioid and the Cartesian oval.

ΘΚΠ

the world > relative properties > number > geometry > surface > [adjective]

monoid1863

anallagmatic1869

scrolar1869

torsal1869

closed1882

vicinal1895

orientable1920

non-orientable1925

1869 Clifford Brit. Assoc. Rep. 8 On the Umbilici of Anallagmatic Surfaces.

1874 G. Salmon Treat. Analytic Geom. Three Dimensions (ed. 3) §516 A surface which is its own inverse with regard to any point has been called an anallagmatic surface.

1983 J. Glazebrook tr. E. Cartan Geom. Riemannian Spaces 158 Anallagmatic transformations are conformal transformations: they preserve angles.

1997 Computer Aided Geom. Design 14 350 We may also characterize the above general cyclides as those anallagmatic surfaces whose deferent is a central quadric.

2. Of a tessellation in which the cells are of one or other of two colours: such that placing any two columns, or any two rows, side by side results in half the adjacent cells having the same colour and half having different colours.

ΚΠ

1897 Nature 25 Mar. 494/1 At one time he [sc. J. J. Sylvester] was interested in the design of tessellated pavements; one anallagmatic design was..put down in the hall of the Junior United Service Club.

1959 J. Needham Sci. & Civilisation in China III. 111 Another, geometrical, puzzle, the rearrangements of a set of wooden pieces..is related to geometrical dissections, static games, anallagmatic tessellation, etc.

1990 Sciences Nov.–Dec. 53/2 In the 1890s..Jacques Hadamard studied a similarly unusual class of arrays called anallagmatic pavements, now known as Hadamard squares.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021).

单词	anallagmatic
释义	anallagmaticadj. Brit. /ˌanəlaɡˈmatɪk/, U.S. /ˌænəˌlæɡˈmædɪk/ Origin: A borrowing from Greek, combined with English elements; modelled on a French lexical item. Etymons: an- prefix², Greek ἀλλαγματ- , ἄλλαγμα , -ic suffix. Etymology: < an- prefix² + ancient Greek ἀλλαγματ-, ἄλλαγμα something given in exchange ( < the stem of ἀλλάσσειν to change, exchange (see allactite n.) + -μα : see -oma comb. form) + -ic suffix, after French anallagmatique (T. Moutard 1864, in Nouvelles ann. de math. 3 307). Mathematics. 1. Of a surface or curve: not changed in form by inversion (inversion n. 23).Examples of anallagmatic curves are the cardioid and the Cartesian oval. ΘΚΠ the world > relative properties > number > geometry > surface > [adjective] monoid1863 anallagmatic1869 scrolar1869 torsal1869 closed1882 vicinal1895 orientable1920 non-orientable1925 1869 Clifford Brit. Assoc. Rep. 8 On the Umbilici of Anallagmatic Surfaces. 1874 G. Salmon Treat. Analytic Geom. Three Dimensions (ed. 3) §516 A surface which is its own inverse with regard to any point has been called an anallagmatic surface. 1983 J. Glazebrook tr. E. Cartan Geom. Riemannian Spaces 158 Anallagmatic transformations are conformal transformations: they preserve angles. 1997 Computer Aided Geom. Design 14 350 We may also characterize the above general cyclides as those anallagmatic surfaces whose deferent is a central quadric. 2. Of a tessellation in which the cells are of one or other of two colours: such that placing any two columns, or any two rows, side by side results in half the adjacent cells having the same colour and half having different colours. ΚΠ 1897 Nature 25 Mar. 494/1 At one time he [sc. J. J. Sylvester] was interested in the design of tessellated pavements; one anallagmatic design was..put down in the hall of the Junior United Service Club. 1959 J. Needham Sci. & Civilisation in China III. 111 Another, geometrical, puzzle, the rearrangements of a set of wooden pieces..is related to geometrical dissections, static games, anallagmatic tessellation, etc. 1990 Sciences Nov.–Dec. 53/2 In the 1890s..Jacques Hadamard studied a similarly unusual class of arrays called anallagmatic pavements, now known as Hadamard squares. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online December 2021). < adj.1869
随便看	θ72893 θ72894 θ72895 θ72896 θ72897 θ72898 θ72899 θ729 θ7290 θ72900 θ72901 θ72902 θ72903 θ72904 θ72905 θ72906 θ72907 θ72908 θ72909 θ7291 θ72910 θ72911 θ72912 θ72913 θ72914