“CrossingNumber”的概念、定义、习题解题方法及翻译-数学辞典

单词	CrossingNumber
释义	crossing number The crossing number $\\operatorname{cr}(G)$ of a graph (http://planetmath.org/Graph) $G$ is the minimal number of crossings among all embeddings of $G$ in the plane.
随便看	division algorithm for integers DivisionByZero division by zero DivisionFactorial Division Factorial DivisionInGroup division in group DivisionRing division ring Divisor divisor DivisorAsFactorOfPrincipalDivisor divisor as factor of principal divisor DivisorFunction divisor function DivisorFunctionIsMultiplicativeThe divisor function is multiplicative, the DivisorsInBaseFieldAndFiniteExtensionField divisors in base field and finite extension field DivisorSumOfAnArithmeticFunction divisor sum of an arithmetic function DivisorTheory divisor theory DivisorTheoryAndExponentValuations divisor theory and exponent valuations

数学辞典收录了18232条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。

crossing number