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grad 音標拼音: [gr'æd] 畢業生,梯度單位 畢業生,梯度單位 grad n 1: one-hundredth of a right angle [synonym: {grad}, {grade}] 2: a person who has received a degree from a school (high school or college or university) [synonym: {alumnus}, {alumna}, {alum}, {graduate}, {grad}] del \del\ n. (Math.)
a differential operator which, operating on a function of several variables, gives the sum of the partial derivatives of the function with respect to the three orthogonal spatial coordinates; -- also called the {gradient} or {grad}. It is represented by an inverted Greek capital delta ([nabla]), and is thus because of its shape also called {nabla}, meaning harp in Hebrew. [PJC] |
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