单词 | quadrinvariant |
释义 | > as lemmasquadrinvariant quadrinvariant n. Brit. /ˌkwɒdrɪnˈvɛːrɪənt/ , U.S. /ˌkwɑdrᵻnˈvɛriənt/ rareΚΠ 1853 Philos. Trans. (Royal Soc.) 143 546 Quadrinvariant, an invariant of which the terms are quadratic functions of the coefficients of the primitive. 1884 W. R. W. Roberts in Hermathena X. 182 Functions..expressed by the quadrinvariants of the quantics [etc.]. 1903 Philos. Trans. (Royal Soc.) A. 201 358 The quartic ω4, its Hessian, its quadrinvariant, and its cubinvariant. < as lemmas |
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