In this dissertation, the best simultaneous approximation with weight to infinite sequence from simultaneous-suns in complex normed linear space is considered, and in the case when the weight satisfies a certain condition, the characterizations of approximation from a simultaneous-sun and uniqueness of approximation from a RS-set are obtained; moreover, in the case when the weight is free, the characterizations of approximation to a totally bounded sequence from a convex set are established.

本文在復(fù)賦范空間中研究了同時太陽集對無限序列的加權(quán)同時逼近問題，在權(quán)滿足一定條件時先锋xfplay色资源网站123，通過把所研究問題轉(zhuǎn)化為連續(xù)向量值函數(shù)空間中相應(yīng)集對一個上半連續(xù)函數(shù)的最佳逼近問題黄色做吊逼，得到了逼近的特征和RS集逼近的唯一性定理，有例表明它們是已有結(jié)果的本質(zhì)推廣无码自拍日韩视频；在權(quán)不受限制時欧美性爱A√视频在线，得到了凸集對全有界序列逼近的特征。

The author investigates simultaneous approximation by Gama operators and the rate of pointwise convergence by new Gamma type operators.

本論文討論了Gamma算子的同時逼近日韩偷窥自拍系列在线观看视频，Gamma算子線性組合同時逼近的等價定理以及新的Gamma型算子的逼近速度五级全黄的视频在线观看。

The close relationship between the Hybrid polynomial approximation and the classical Hermite polynomial approximation to rational curves and surfaces are studied, Hermite approximation is in fact a special case of Hybrid approximation. The sufficient and necessary condition for the convergence of Hybrid approximation to rational Bézier surface is deduced and proved.

圍繞著有理曲線曲面的Hybrid逼近，作者研究了有理曲線曲面的Hybrid多項式逼近與傳統(tǒng)的Hermite多項式逼近之間的密切關(guān)系一级黄色毛片在线A视频免费播丶放，并指出Hermite逼近事實上是Hybrid逼近的一種特例精品国产的一区二区A丨换脸，此后演繹并證明了有理Bézier曲面的Hybrid多項式逼近收斂的充分必要條件被男人cao了几天几夜视频。

In this paper,a rational approximation method of the norm of parametric speed is given,which is more effective than the polynomial approximation.

文章根據(jù)等距曲線逼近的關(guān)鍵在于對其參數(shù)速度模的逼近，提出了對參數(shù)速度模有理逼近的2種形式国产精品久久久久精品18沈嶣，在此基礎(chǔ)上給出了平面Bézier曲線等距曲線的逼近函數(shù)和誤差估計函數(shù)国产黄片无码av，并導(dǎo)出了保持法矢平移方向的代數(shù)方式的等距有理逼近算法。

The problem of parametric speed approximation of a curve is raised in this paper.

該文提出了曲線的參數(shù)速度逼近問題又粗又大又有硬的黄色短视频,,看湿下面，指出等距曲線逼近的關(guān)鍵在于參數(shù)速度的逼近com.mm国产黄片，并用兩種方式來實現(xiàn)它。

The results are much better than the other approaches'. Then we give another method for approximating offset curves. The circle is first approximated by regular polygon within some tolerance. The exact offset curve is then approximated by the convolution of the regular polygon with a B-spline curve or a NURBS curve having the same degree.

與此同時作者從基圓的正多邊形逼近出發(fā)妓女在线观看网站，通過求解包絡(luò)的技巧給出了等距曲線逼近的另一個算法搜欧美性爱黄色网站，可整體估計誤差，所得的等距逼近曲線為與基曲線同次數(shù)的B樣條或NURBS曲線女子被男子操的视频，克服了國際上現(xiàn)有同類算法中逼近曲線次數(shù)幾倍于基曲線次數(shù)的缺陷这里只精品视屏。

The purpose of this dissertation is to study a principle or method to describe and analyze the complex problems with high gradients arising from practical engineering. The main contents cover:1. The Bezier function was introduced to approximate high gradient functions, and a suitable coupled function was derived. Some detail numerical results show that the Bezier-based function is dominant over other combination function such as polynominal and trigonometric series, when to describe a high gradient function.

針對工程中大量存在的高梯度問題進(jìn)行函數(shù)逼近的研究，引入Bezier函數(shù)對高梯度問題進(jìn)行函數(shù)逼近在线观看黄片儿。，構(gòu)成以Bezier函數(shù)為主的復(fù)合逼近函數(shù)日韩另类综合福利网站在线播放视频，數(shù)值考證表明：與常規(guī)多項式插值函數(shù)的逼近及"冪／三角"復(fù)合函數(shù)的逼近相比，基于Bezier函數(shù)的逼近函數(shù)對高梯度問題的描述具有明顯優(yōu)勢性欧美精品一区二区三区在线播放。

Direct and inverse theorems of approximation by this kind of operators are discussed, and the Jackson—type integral estimation of approximation and Steckin — Marchaud inequality of weak type of uniform approximation for these operators are obtained.

討論了一元Bernstein型算子的逼近正逆定理日本PP视频，建立了該算子逼近的Jackson型積分估計式和一致逼近的弱Steckin-Marchaud型不等式。

In this paper, a region approximation idea that means using a "fat curve" with a width to approximate the offset curve is proposed, and a complete set of algorithms to approximate offset curve using disk Bézier curve are given and implemented. In the algorithms, the optimal and uniform approximate curve of the offset curve as the central curve of the Disk Bézier curve is found by using Remez method, and then the upper optimal and uniform approximation principle is proposed to compute the error radius function of the Disk Bézier curve. Thus, the whole Disk Bézier curve can be obtained. In the end of this paper, the approximate effect of the Disk Bézier curve is not only analyzed and assessed, but also some specific examples are provided.

提出用一條帶寬度的"胖曲線"來逼近上述等距曲線的區(qū)域逼近思想新淫色综合网站，并建立與實現(xiàn)了圓域Bézier曲線等距逼近的整套算法99久久这里只有精品，包括應(yīng)用Remez方法求出等距曲線的最佳一致逼近曲線作為圓域Bézier曲線的中心曲線，提出上控最佳一致逼近的原理求出圓域Bézier曲線的誤差半徑函數(shù)人人射，以及確定整條圓域Bézier曲線欧美极品专区高清在线观看，最后還對該圓域Bézier逼近的效果做了分析和考核，并給出了一些具體實例pp.94在线免费。

In practice, the offset curve usually is approximated by lower degree rational polynomial cur ve in order to have the unified expression of data structure and geometric algor ithm in the commercial modeling systems.

通過用雙圓弧逼近表示 NURBS( non- uniform rational B- spline)曲線及其 offset三级色网站在线，并利用雙圓弧逼近的特有性質(zhì)，把 offset的雙圓弧逼近轉(zhuǎn)化為原曲線的雙圓弧逼近猛操视频，簡化了問題的求解www.cn.com黄色视频。

approximability：可逼近性

approach 接近 | approximability 可逼近性 | approximable 可逼近的

approximable：可逼近的

approximability 可逼近性 | approximable 可逼近的 | approximate 近似的;使近似

uniqueness of best approximation：最佳逼近的唯一性

最佳逼近的特征|characterization of best approximation | 最佳逼近的唯一性|uniqueness of best approximation | 最佳漸近正態(tài)估計|best asymptotically normal estimate

characterization of best approximation：最佳逼近的特征

最佳逼近的存在性|existence of best approximation | 最佳逼近的特征|characterization of best approximation | 最佳逼近的唯一性|uniqueness of best approximation

Foretelling a storm's to blow：那朵紅霞是風(fēng)暴逼近的暗示

> > 萬象悄悄的謝幕隱去 The world has faded away except that sunset gl... | > > 那朵紅霞是風(fēng)暴逼近的暗示 Foretelling a storm's to blow | > > 積雨雲(yún)驟然在狂風(fēng)中相聚Amidst a gale, rain and cloud making lo...

forthcoming impending：即將來臨的, 逼近的

795. immense adj. 極廣大的, 無邊的, 非常好的 | 797. imminent adj. 即將來臨的, 逼近的 forthcoming impending | 798. immunodeficiency n. [生]免疫缺陷

imminent：逼近的

frigid#嚴(yán)寒的;冷淡的 | imminent#逼近的 | spacious#廣大的

order of approximation：逼近的階

order of an infinitesimal 無窮小的階 | order of approximation 逼近的階 | order of branch point 支點的階數(shù)

Diophantine approximation：丟番圖逼近

作者: 馬超 學(xué)位授予單位: 武漢大學(xué) [摘要] 丟番圖逼近(Diophantine Approximation)理論的發(fā)展始于兩個世紀(jì)前,是數(shù)論的一個重要分支. 丟番圖逼近的核心問題是:對于給定的一個實數(shù)x,用分母不大于q 0 (N)的有理數(shù)p/q來逼近x可以達(dá)到什么程度. 也就是說當(dāng)用于

The worsening weather dampens the sound of her approach：惡劣的天氣掩蓋了它逼近的腳步聲

and creates an opportunity.|使它有機(jī)會捕獵 | The worsening weather dampens the sound of her approach,|惡劣的天氣掩蓋了它逼近的腳步聲 | allowing her to get within striking distance.|它正逐漸進(jìn)入攻擊范...