搜尋結果
Bitcoin. This article contains special characters. Without proper rendering support, you may see question marks, boxes, or other symbols. Bitcoin (abbreviation: BTC; sign: ₿) is the first decentralized cryptocurrency.
A cryptocurrency, crypto-currency, or crypto [a] is a digital currency designed to work as a medium of exchange through a computer network that is not reliant on any central authority, such as a government or bank, to uphold or maintain it. [2]
The number π (/paɪ/; spelled out as "pi") is a mathematical constant that is the ratio of a circle's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics. It is an irrational number, meaning that it cannot be expressed exactly as a ratio of two integers, although ...
Bitwise operation. In computer programming, a bitwise operation operates on a bit string, a bit array or a binary numeral (considered as a bit string) at the level of its individual bits. It is a fast and simple action, basic to the higher-level arithmetic operations and directly supported by the processor.
the free encyclopedia that anyone can edit. 550 Madison Avenue is a postmodern skyscraper on Madison Avenue between 55th Street and 56th Street in New York City. Designed by Philip Johnson and John Burgee with associate architect Simmons Architects, the building was completed in 1984. It is a 647-foot-tall (197-meter), 37-story office tower ...
A blockchain is a distributed ledger with growing lists of records ( blocks) that are securely linked together via cryptographic hashes. [1] [2] [3] [4] Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data (generally represented as a Merkle tree, where data nodes are represented by leaves).
Tibet ( / tɪˈbɛt / ⓘ; Tibetan: བོད, Lhasa dialect: [pʰøːʔ˨˧˩] Böd; Chinese : 西藏; pinyin : Xīzàng ), or Greater Tibet, is a region in the central part of East Asia, covering much of the Tibetan Plateau and spanning about 2,500,000 km 2 (970,000 sq mi). It is the homeland of the Tibetan people.
