B is a tone sandhi symbol. In music notation, a lowercase b indicates that a specified note or a string of notes is lowered by half a note, which is called a falling semitone, as opposed to a rising semitone (#), and a capital b indicates a key value (b major or b minor).
3.b (capital); B (lowercase) is the second letter in the Latin alphabet. Like A, the letter B can be traced back to ancient Phoenicia. The appearance of the letter B may be due to the symbol of a house. Like the hieroglyphics in ancient Egypt, it appeared in Semitic characters very early-Sinai Peninsula in about 1500 BC. Now it is the second letter in English.
4, b mathematical symbol. In a circular spine curve, B usually represents the semi-short axis, A represents the semi-long axis, and C represents the semi-focal length.
5. A basic concept of B- partition set theory to describe the set of words is to express the date of the set of words in a language in the form of the union of disjoint subsets B, that is, to call this day B-partition of the set.
Common usage
1, the second option of multiple-choice questions.
2. (capital b) grade b (achievement).
3. (capital b) stands for boron chemically.
4. (capital b) stands for the bomber of the US Air Force.
5. b(bit) bit and B(Byte) byte are mostly used for the speed of file and network transmission. 8 bits equals 1 byte. There are also derivatives such as kilobytes (kB) and megabytes (mB).
6. in chorus (multi-voice chorus), b stands for male base.
7. Used for English words.