布尔函数

Avoid function calls in Boolean conditional statements.

避免在布尔条件语句中调用函数。

Turn this code into a Boolean function called isprime such that

请把相关代码转换为一个布尔值 isprime 的函数。

By means of Boolean matrix operation method, a study is made of defining the prime implicant of multi output function and the operation routine of the method is illustrated with some examples.

运用布尔矩阵运算的方法对确定多输出函数的质蕴涵进行了研究，并通过示例说明了这种方法的运算程序。

The course contains four sections as follows: mathematical logic (including basic concepts of propositional logic and predicate logic, propositional calculuses and inference theories), set theory (including set algebras, relations, functions and cardinal numbers), algebraic structure (including algebraic systems, semigroups and groups, rings and fields, lattices and Boolean algebras), graph theory (including basic concepts of graph, Euler graphs and Hamiltonian graphs, trees, planar graphs and coloring graphs, some special vertex subsets and edge subsets).

本课程包含四部分内容：数理逻辑（包含命题逻辑与一阶逻辑的基本概念、等值演算以及推理理论），集合论（包含集合代数、二元关系、函数和基数），代数结构（包含代数系统、半群与群、环与域、格与布尔代数），图论（包含图的基本概念、欧拉图与哈密顿图、树、平面图及图的着色、图的某些特殊的顶点子集与边子集）。

However, thesemethods can return any value, so if the comparison operator is used in a Booleancontext (e.g., in the condition of an if statement), Python will call

但是这些方法也可以返回任何值，所以如果比较运算发生在布尔上下文中（例如 if 语句中的条件测试），Python会在返回值上调用函数

However, these methods can return any value, so if the comparison operator is used in a Boolean context (e.g., in the condition of an if statement), Python will call bool on the value to determine if the result is true or false.

但是这些方法也可以返回任何值，所以如果比较运算发生在布尔上下文中（例如 if 语句中的条件测试），Python会在返回值上调用函数 bool 确定返回值的真值。

It is found that the Weber-distribution density function will be the optimumn form of inf...

本文对用威布尔分布型影响函数进行地表移动预计的原理和方法做了系统的说明，说明了有关的电子计算机计算程序的使用方法，计算并分析了枣庄矿区十一个观测站的资料，证明了本文提出的理论和方法的合理性和可行性，并得出了一些有用的结论。

By studying measure theory, the students are asked to understand σ-algebras, measure, measurable functions, integral, the measure theory of product spaces, Fubini theorem, and the representation theory of Boolean algebras.

通过本课程学习，使学生掌握σ-代数、测度、可测函数、积分，初步掌握乘积测度空间的构造及Fubini定理，以及布尔代数的表示理论。

A new method of point estimation of weibull distribution with two parameters is presented by means of methods in grey system theory.

本文利用灰色系统理论中的方法，提出了一种新的两参数威布尔分布的点估值方法，该方法使用累加生成技术，对累积失效率函数的原始试验数据进行处理，建立了估值公式。

The LVC32A device performs the Boolean function Y = A + B or Y = A B in positive logic.

该LVC32A设备执行了积极的布尔逻辑函数Y =甲+乙或Y = AB公司。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。