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3 天前 · The "Third Chinese Empire" (中華第三帝國) consisted of the Liao dynasty, the Jin dynasty, the Yuan dynasty, the Ming dynasty, and the Qing dynasty. Accordingly, the terms "Chinese Empire" and "Empire of China" need not necessarily refer to imperial dynasties that had unified China proper.
1 天前 · Principal component analysis (PCA) is a linear dimensionality reduction technique with applications in exploratory data analysis, visualization and data preprocessing. The data is linearly transformed onto a new coordinate system such that the directions (principal components) capturing the largest variation in the data can be easily identified.
3 天前 · Wi-Fi (/ˈwaɪfaɪ/)[1][a] is a family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet access, allowing nearby digital devices to exchange data by radio waves. These are the most widely used computer networks, used globally in home and small ...
4 天前 · A computer is a machine that can be programmed to automatically carry out sequences of arithmetic or logical operations ( computation ). Modern digital electronic computers can perform generic sets of operations known as programs. These programs enable computers to perform a wide range of tasks. The term computer system may refer to a nominally ...
2 天前 · Leo Tolstoy at age 20, c. 1848. Tolstoy was born at Yasnaya Polyana, a family estate 12 kilometres (7.5 mi) southwest of Tula, and 200 kilometres (120 mi) south of Moscow. He was the fourth of five children of Count Nikolai Ilyich Tolstoy (1794–1837), a veteran of the Patriotic War of 1812, and Princess Mariya Tolstaya (née Volkonskaya; 1790 ...
1 天前 · Andhra Pradesh (English: /ˌɑːndrə prəˈdɛʃ/,[11] Telugu: [aːndʱrɐ prɐdeːʃ] ⓘ abbr. AP) is a state in the southern coastal region of India. It is the seventh-largest state with an area of 162,970 km2 (62,920 sq mi)[5] and the tenth-most populous state with 49,577,103 inhabitants.[4] It shares borders with Chhattisgarh, Odisha ...
1 天前 · C. S. Lewis. Clive Staples Lewis FBA (29 November 1898 – 22 November 1963) was a British writer, literary scholar, and Anglican lay theologian. He held academic positions in English literature at both Magdalen College, Oxford (1925–1954), and Magdalene College, Cambridge (1954–1963). He is best known as the author of The Chronicles of ...
