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2 天前 · The apostrophe ( ' or ’) is a punctuation mark, and sometimes a diacritical mark, in languages that use the Latin alphabet and some other alphabets. In English, the apostrophe is used for three basic purposes: The marking of the omission of one or more letters, e.g. the contraction of "do not" to "don't"
1 天前 · Residence McLeod Ganj, Dharamshala, India Formation 1391 First holder Gendün Drubpa, 1st Dalai Lama, posthumously awarded after 1578. Website dalailama.com Dalai Lama (UK: / ˈ d æ l aɪ ˈ l ɑː m ə /, US: / ˈ d ɑː l aɪ /; Tibetan: ཏ ་ལའ ་བ ་མ་, Wylie: Tā la'i bla ma [táːlɛː láma]) is a title given by Altan Khan in 1578 AD at Yanghua Monastery to the foremost ...
2 天前 · Florence, birthplace of the Italian Renaissance.The architectural perspective and new systems of banking and accounting were introduced during the time. The Renaissance (UK: / r ə ˈ n eɪ s ən s / rən-AY-sənss, US: / ˈ r ɛ n ə s ɑː n s / REN-ə-sahnss) is a period of history and a European cultural movement covering the 15th and 16th centuries.
2 天前 · French Revolution. The French Revolution [a] was a period of political and societal change in France that began with the Estates General of 1789, and ended with the coup of 18 Brumaire in November 1799 and the formation of the French Consulate. Many of its ideas are considered fundamental principles of liberal democracy, [1] while its values ...
22 小時前 · Quantum mechanics. Quantum entanglement is the phenomenon of a group of particles being generated, interacting, or sharing spatial proximity in such a way that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance.
2 天前 · Scope. Matrix calculus refers to a number of different notations that use matrices and vectors to collect the derivative of each component of the dependent variable with respect to each component of the independent variable. In general, the independent variable can be a scalar, a vector, or a matrix while the dependent variable can be any of ...
22 小時前 · 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.
