noun🔗Share虚词, 功能词。 (grammar) A function word."Prepositions are examples of functors in English grammar. "在英语语法中，介词是虚词或功能词的例子。grammarlanguagelinguisticsChat with AIVocabulary GamePractice Reading
noun🔗Share函子，函数对象。 A function object."The calculator app uses different functors, like add, subtract, multiply, and divide, to perform various arithmetic operations when you press the buttons. "这个计算器应用使用不同的函子(函数对象)，比如add(加), subtract(减), multiply(乘)和divide(除)，来在你按下按钮时执行各种算术运算。computingfunctiontechnicalChat with AIVocabulary GamePractice Reading
noun🔗Share函子，仿函子 A category homomorphism; a morphism from a source category to a target category which maps objects to objects and arrows to arrows, in such a way as to preserve domains and codomains (of the arrows) as well as composition and identities."In the category of categories, mathbb{CAT}, the objects are categories and the morphisms are functors."在范畴的范畴mathbb{CAT}中，对象是范畴，态射是函子（仿函子）。mathlogiccomputingtechnicaltheoryChat with AIVocabulary GamePractice Reading
