L, L is the letter 12 in the Latin alphabet. L comes from semitic Lamed, which means sound value /l/. It is the same as Greek letters lambda λ (capital) or λ (lowercase) and Etruscan and Latin letters. In reference books, it can also be spelled el or ell.

Use:

1. The twelfth letter of the English alphabet, capitalized as L, lowercase as L, and phonetic symbol: /e? /。

2. In the Phoenician and Hebrew alphabets, L is called lamedh, which is a hieroglyphic symbol representing oxgoad or whip? . The corresponding letter in Greek is λ(lambda.

3. Morse code: ...

4.l stands for "left" in most native English-speaking countries, such as left, left lane and left channel, which is the abbreviation of English "left" (antonym: right).

5. In the current futures of Dalian Futures Exchange, L is a plastic contract.

6. in geometry, l or l is used to represent the length, which is the abbreviation of length.

7. In mathematical analysis, "(L)∫" is often used to express Lebesgue integral.

8. In physics, the torque formula is M=F×L, where l is the effective length. In addition, the black body L can also represent angular momentum. The white object l stands for inductance.