| 释义 |
tesseral, a.|ˈtɛsərəl|
[f. tessera + -al1.]
1. Of, pertaining to, or resembling a tessera or tesseræ; composed of tesseræ.
1846Worcester cites Edinb. Rev.
2. Cryst. = isometric 3, cubic a. 1 c.
1854Pereira's Pol. Light 191 The cubic or octohedral system. Synonymes.—The regular, the tessular, the tesseral, or the isometric system. 1878Gurney Crystallogr. 37 Crystals possessing this highest possible degree of symmetry are said to belong to the Cubic or Tesseral System.
3. Math. Relating to the tesseræ of a spherical surface (see tessera 2 b), as in tesseral harmonic, a spherical surface harmonic which is the product of two factors depending respectively on latitude and longitude.
1873Maxwell Electr. & Magn. (1881) I. 196 We may now write the expressions for the two tesseral harmonics. Ibid. 198 To find the surface integral of the square of any tesseral harmonic taken over the sphere. 1887Hobson in Trans. Camb. Philos. Soc. (1889) XIV. 211 The zonal and tesseral harmonics..are exhibited as series. |