Cyfra zero
Znaczenie symbolu
The Arabic digit zero is one of the numerals that is widely spread around the world. This positional system for writing numbers originated in India in the 5th century or earlier. It was around this time when the concept of zero was adopted and the digit 0 was created. The Arabs borrowed it from the Indians. Al-Khwarizmi wrote a book called „On the Indian Calculation,” which helped to spread the use of Arabic numerals. Later this counting system came to Europe through Spain. Pope Sylvester II advocated for the replacement of Roman numerals with Arabic ones in the 10th century. In the 12th century, Al-Khwarizmi's book „On the Indian Calculation” was translated into Latin, which played an important role in the adoption of Arabic numerals.
Symbol „Cyfra zero” jest zawarty w podbloku „Cyfry ASCII” bloku „Podstawowy łaciński” i został zatwierdzony jako część wersji Unicode 1.1 w 1993 roku.
| Nazwa Unicode | Digit Zero |
| Numer w Unicode | |
| Samolot | 0: Główna płaszczyzna wielojęzyczna |
| Blok Unicode | Podstawowy łaciński |
| Podblok Unicode | Cyfry ASCII |
| Wersja Unicode | 1.1 (1993) |
| Kody Alt |
| Typ sparowanego wspornika lusterka (bidi) | None |
| Wykluczenie kompozycji | No |
| Zmiana przypadku | 0030 |
| Prosta zmiana obudowy | 0030 |
| ID_Continue | + |
| XID_Continue | + |
| Grapheme_Base | + |
| scripts | Common |
| Hex_Digit | + |
| ASCII_Hex_Digit | + |
| Kodowanie | hex | dec (bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | 30 | 48 | 48 | 00110000 |
| UTF-16BE | 00 30 | 0 48 | 48 | 00000000 00110000 |
| UTF-16LE | 30 00 | 48 0 | 12288 | 00110000 00000000 |
| UTF-32BE | 00 00 00 30 | 0 0 0 48 | 48 | 00000000 00000000 00000000 00110000 |
| UTF-32LE | 30 00 00 00 | 48 0 0 0 | 805306368 | 00110000 00000000 00000000 00000000 |
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