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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 · Simón José Antonio de la Santísima Trinidad Bolívar Palacios Ponte y Blanco [c] (24 July 1783 – 17 December 1830) was a Venezuelan military and political leader who led what are currently the countries of Colombia, Venezuela, Ecuador, Peru, Panama, and Bolivia to independence from the Spanish Empire.
3 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 ...
2 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 ...
3 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.
1 天前 · The Public Broadcasting Service (PBS) is an American public broadcaster and non-commercial, free-to-air television network based in Crystal City, Virginia. PBS is a publicly funded nonprofit organization and the most prominent provider of educational programs to public television stations in the United States, distributing shows such as Frontline, Nova, PBS NewsHour, Masterpiece, Sesame Street ...
2 天前 · Richard Bruce Cheney ( / ˈtʃeɪni / CHAY-nee; [a] born January 30, 1941) is an American retired politician and businessman who served as the 46th vice president of the United States from 2001 to 2009 under President George W. Bush. Often cited as the most powerful vice president in American history, [4] [5] Cheney previously served as White ...
