epsilon
epsilon — noun
1. In the Greek writing system, the character that appears fifth in the set is epsi
In the Greek writing system, the character that appears fifth in the set is epsilon, written as Ε (uppercase) or ε (lowercase) and widely used as a symbol in mathematics and science.
Professor Andrei wrote a lowercase epsilon on the board during the calculus lecture.
lowercase/uppercase epsilon
The symbol ε often appears in formulas for limits and series in advanced math textbooks.
Tamar learned to write the Greek letter epsilon neatly in her physics notebook.
In the equation for the experiment, the team set ε to a value of 0.001.
That student club name starts with an epsilon, the fifth Greek letter.
- ε
the actual Greek letter symbol, used in place of the word in mathematical writing
- fifth letter
descriptive phrase naming its position in the Greek alphabet
文法句型
an epsilon
lowercase/uppercase epsilon
epsilon + noun (epsilon-delta proof)
用法筆記
Countable noun; the plural is 'epsilons'. In mathematical writing, the lowercase form ε is far more common than the uppercase Ε. Learners in STEM fields will encounter epsilon most often as a symbol for an arbitrarily small positive quantity, especially in limit proofs (epsilon-delta definition). Outside technical contexts, epsilon appears in the names of fraternities, sororities, and academic honour societies.