And, if we set these things equal, what we get is actually, we are replacing the function by its linear approximation.
如果把这两个看做等价的，实际上，就是用函数的线性近似式来代替原函数。
If we want to be a bit more precise, we know that when we change by t, t that's for linear approximation to how the function changes.
如果我们想更加精确一点，我们知道当t变化的时候，乘以导数就出现了，well, t, times, the, derivative, comes, in，这是函数变化量的线性近似。
The optimal approximation functions, of a continuous function which are constituted of the linear combination of series of Chebychev polynome have the characteristics of uniform approximation.
应用第一多项式系列的线性组合构成的某连续函数的最佳逼近函数，具有一致逼近的性质。
The simplified Kochin function and the corresponding linear wave resistance formula for shallow water are derived by an analysis of the order of magnitude and approximation.
借助量级分析和近似处理，导出了简化浅水柯钦函数和相应的浅水线性波阻公式。
The simplified Kochin function and the corresponding linear wave resistance formula for shallow water are derived by an analysis of the order of magnitude and approximation.
借助量级分析和近似处理，导出了简化浅水柯钦函数和相应的浅水线性波阻公式。
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