泛函分析

functional analysis, Branch of mathematical analysis dealing with functionals, or functions of functions. It emerged as a distinct field in the 20th century, when it was realized that diverse mathematical processes, from arithmetic to calculus procedures, exhibit very similar properties.

函数分析，数学分析的分支，处理函数，或函数的函数。它作为一个独立的领域出现在20世纪，当时人们意识到不同的数学过程，从算术到微积分程序，表现出非常相似的特性。