单词 | derivative |
释义 | derivative [dǝ`riv·ǝd·iv] CHEMISTRY A substance that is made from another substance. MATHEMATICS The slope of a graph yƒ (x ) at a given point c; more precisely, it is the limit as h approaches zero of f (c+h )-f (c ) divided by h. Also known as differential coefficient; rate of change. |
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