second derivative造句
例句與造句
- The function (f')is usually written simply f" and is called the second derivative .
函數(shù)（f’）通常簡寫成f”，并稱之為f的二階導(dǎo)數(shù)。 - A class of stiffly stable k - step second derivative methods of order 2k
1階剛性穩(wěn)定的二階導(dǎo)數(shù)方法 - Voltammetric behavior of venoruton and its determination by second derivative convolution voltammtry
維腦路通的伏安行為及其二階導(dǎo)數(shù)卷積伏安法測定 - Study on method of determination of the content of sesame oil by second derivative ultraviolet spectrophotometry
用二階導(dǎo)數(shù)紫外分光光度法直接測定芝麻油含量 - 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
條碼識別是一個邊緣檢測問題。長期以來，邊緣檢測都是通過一階導(dǎo)數(shù)極大值或二階導(dǎo)數(shù)零交叉進行的。 - It's difficult to find second derivative in a sentence. 用second derivative造句挺難的
- Based on the fourth - order difference formula of the second derivative term , a fourth - order finite difference method is developed for solving two - points boundary value problem
摘要從中心差分公式出發(fā)，利用二階微分的四階差分公式，對兩點邊值問題得到了一種四階精度的差分格式。 - Thirdly , the effects on the cv rational interpolating splines from the perturbation of the two boundary conditions are analyzed . from this the error bounds of first and second derivatives of cv rational interpolating spline are given
然后,分析了兩類端點條件的擾動對cv有理插值樣條函數(shù)的影響,給出了它們在非均勻節(jié)點處的一階和二階導(dǎo)數(shù)值的誤差界 - Since motion simulator focuses on reproduction of motion , it makes great sense to calculate its first and second derivative of kinematic parameters for improvement and evaluation of performance of motion simulator
由于運動模擬器注重于動感的再現(xiàn),因此, stewart平臺的一階、二階運動學(xué)參數(shù)的計算對提高運動模擬器的質(zhì)量以及評價運動模擬器的性能具有重要的意義。 - By the reason of characteristic on statistics of images , we gave a face searching and locating algorithm based on the second derivatives operator . we obtain the position of face by calculating the change of projection curve using the second operator
該方法計算人臉在兩個投影方向上的統(tǒng)計特征，使用二階微商算子估計投影曲線斜率的變化，進而找出人臉的外接矩形，判斷頭部在圖象中的位置。