| 释义 |
similarity|sɪmɪˈlærɪtɪ|
[f. similar a. + -ity, or ad. F. similarité.]
1. The state or fact of being similar; likeness, resemblance. (Common from c 1780.)
1664Power Exp. Philos. i. 56 Both which experiments do prove an homogeneity and similarity of their substance. 1721in Bailey. 1771Junius Lett. lxvii. (1788) 340 It arose from a fortunate similarity of principles. 1794Sullivan View Nat. II. 280 There is a strong similarity between the Hebrew and the Scythiac languages. 1843A. Bethune Sc. Fireside Stor. 91 Nothing has a greater tendency to unlock the heart..than a similarity of misfortunes. 1879Lubbock Sci. Lect. ii. 41 Certain insects escape danger by their similarity to plants.
2. pl. Points of resemblance.
1838Murray's N. Germ. 142 Those who are acquainted with the French metropolis will find here many similarities. 1865Lubbock Preh. Times xv. (1878) 570 Presenting many remarkable similarities. 1897Sat. Rev. 17 Apr. 418/1 There are many curious similarities between the inhabitants of Europe and North America.
3. attrib., as similarity continuum, similarity set; (cf. similar a. 3 c) similarity class, similarity group, similarity transformation.
1952R. R. Stoll Linear Algebra & Matrix Theory vii. 176 The similarity classes of transformations are in one-one correspondence with the similarity classes of n × n matrices. 1975S. Koh et al. tr. Satake's Linear Algebra iii. 141 The set of all matrices which are similar to a given matrix is called the ‘similarity class’ of this matrix.
1960M. Rokeach Open & Closed Mind ii. 46 Recall again that we conceive of the disbelief system as a similarity continuum.
1937A. A. Albert Mod. Higher Algebra iv. 76 We are studying the invariants of matrices A under a group of transformations A {lrar} PAP-1 called the similarity group.
1977R. Holland Self & Social Context viii. 232 Objects normally grouped together in similarity sets may change their relationships following a revolution in science.
1961G. Hadley Linear Algebra vii. 239 Either PAP-1 or P-1AP represents a similarity transformation on A. 1968Fox & Mayers Computing Methods for Scientists & Engineers v. 113 A final important iterative method..succeeds in reducing the matrix by similarity transformation to triangular form. 1976G. Strang Linear Algebra & its Applications v. 222 Similarity transformations leave the eigenvalues unchanged. |