单词	Jacobian
释义	Jacobian noun Ja·​co·​bi·​an jə-ˈkō-bē-ən  yä- : a determinant which is defined for a finite number of functions of the same number of variables and in which each row consists of the first partial derivatives of the same function with respect to each of the variables Word History Etymology K. G. J. Jacobi †1851 German mathematician First Known Use 1852, in the meaning defined above
随便看	softcovers soften soften the blow soften up softened softened up softener softeners softening softening point softening up softenings softens softens up softer softest softhead softheaded softheadedly softheadedness softheadednesses softheads softhearted softheartedly softheartedness

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