“difference quotient”的概念、定义、翻译、参考文献-科学参考

单词	difference quotient
释义	difference quotient [`dif·rǝns ´kwō·shǝnt] ^MATHEMATICS The increment of the value of a function divided by the increment of the independent variable; for the function y = f (x ), it is Δ<y / Δx = [f (x + Δx ) - f (x )]Δx, where Δx and Δy are the increments of x and y.
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