second derivative的意思

second derivative中文翻譯：

二次導數

相似詞語短語

derivative───adj.（藝術家或藝術作品）模仿的；受……影響的；（金融產品）衍生的；n.派生物；金融衍生產品；派生詞；（化學）衍生物；導數

cosine derivative───余弦導數

second───adj.第二（個）的；（比賽、級別上）居第二位的；另外的；次要的；v.支持，附議；臨時調派（工作人員等）；n.(Second)（美）塞孔（人名）；num.第二；（規模、質量等）居第二位的；另外的；n.秒；瞬間；第二名；二等品；adv.居第二位；第二，其次

trigonometric derivative───三角導數

derivative calculator───導數計算器

derivative action───[自]微商作用

convective derivative───n.隨流導數；[流]遷移導數；傳遞導數

first derivative───一階導數；一階微商

indicated derivative───指示導數

雙語使用場景

it's the second derivative of a position vector.───它是位置向量的二階導。

So, what does the second derivative test say?───那么二階導數判定是怎樣的呢？

And all we did, further, is take that second derivative.───總而言之，我們所做的就是求二階導數。

That is a critical point. And we used the second derivative to see that this critical point is a local maximum.───這是一個臨界點，考察它的二階導數，會發現這確實是一個極大值點。

It is unnecessary to get second derivative of target function in this algorithm, and it is simple and easy to program.───即單參數動態搜索與黃金分割混合算法，這種算法不需要求目標函數的二階導數，算法簡單，編程容易。

This paper describes a sensitive method for the determination of trace estrogen and androgen by second derivative convolution voltammetry.───二階導數卷積伏安法應用于水稻中痕量雌雄激素的檢測，具有快速、靈敏、干擾少的特點。

The computation precision can be enhanced with the consideration of second derivative.───計算結果表明，考慮二階導數的影響，可以提高計算精度。

Moreover, there were certain differences in second derivative near-infrared spectra of the two samples.───兩者薄層色譜與近紅外二階導數光譜也略有不同。

Or maybe we could perform analytic derivatives on the temperature vectors (probably second derivative to get the inflection).───或者可能我們可以對溫度向量進行解析求導（analyticderivatives，要得到形變可能需要進行二次求導）。

英語使用場景

By first and second derivative of velocity function from growth process of logistic curve, the yielding points displaying the variety of curve were obtained and compared.

Perhaps it could be large if the second derivative of f is small, and viceversa.

Bar code recognition is a matter of edge detection, which has long been done through the maximum value of the first derivative or zero crossing of the second derivative.

So, it's the second derivative of a position vector.

Diphenhydramine hydrochloride and ephedrine hydrochloride in diphenhydramine and ephedrine nasal drops are determined by second derivative spectrophotometry.

The determination of clobetasol propionate by the method of second derivative linear sweep adsorptive stripping voltammetry was reported.

Perhaps it could be large if the second derivative of f is small, and viceversa. Hill climbing has several limitations.

The time rate of change of concentration is proportional to the second derivative of concentration.

Two edge detection operators of second derivative model, the discrete Laplacian of Gaussian (DLOG) and Laplacian of binomial distribution (LOB) operators are introduced in this paper.