Greek alphabet (English: Greek alphabet, Greek: ε λ λ ν ι κ? αλφ? β η ο) is a letter used in Greek, and it is also widely used in mathematics, physics, biology, chemistry, astronomy and other disciplines. Greek alphabet, similar to Latin alphabet and Cyrillic alphabet, is a complete phonemic text.

the domain of science

1, Greek letters are used in mathematics, science and engineering.

In mathematics, Greek letters are usually used to represent constants, special functions and some specific variables. In the field of mathematics, the meanings of uppercase and lowercase Greek letters are usually different and irrelevant.

Some capitalized Greek letters are the same or very similar to the corresponding Latin letters, so they are not used, such as: A, B, E, Z, H, I, K, M, N, O, P, T, Y, X. In addition, lowercase ι(iota), ο(omicron) and μ (up

2. In financial mathematics, Greek letters are variables used to represent investment risks.

Mathematicians whose mother tongue is English don't read Greek letters with modern or ancient pronunciations, but read traditional English pronunciations. For example, the letter θ, these mathematicians will read it as [? θeit？ ]。 (In ancient times: [th^ε? Ta], nowadays: [? θita ])

3. Mathematical style and printing style

The Greek letters used in mathematics are usually different from those in Greek characters: the Greek letters used in mathematics are used independently and are not connected with other letters. In addition, some Greek letters used in mathematics use other styles, rather than those used in printing.

There is a label "mgrk" (mathematical Greek) in the OpenType font format, which can be used to mark that a Greek letter (not Greek) is used in mathematics.