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ε (EN)
字母,符号

字母 “ε”

ε, epsilon
  1. 希腊字母的第五个字母(ε,读作“艾普西隆”)。
    In Greek writing, words like "ἐλπίς" (hope) begin with an ε.

符号 “ε”

ε
  1. (数学)任意小的正数
    In calculus, we let ε be as small as needed to make the function values close to the limit.