超二次曲面 的英文怎麼說
中文拼音 [chāoèrcìqūmiàn]
超二次曲面
英文
hyperquadric- 超 : Ⅰ動詞1 (越過; 高出) exceed; surpass; overtake 2 (在某個范圍以外; 不受限制) transcend; go beyo...
- 二 : Ⅰ數詞(一加一后所得) two Ⅱ形容詞(兩樣) different
- 次 : Ⅰ名詞1 (次序; 等第) order; sequence 2 [書面語] (出外遠行時停留的處所) stopping place on a jou...
- 曲 : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
- 面 : Ⅰ名詞1 (頭的前部; 臉) face 2 (物體的表面) surface; top 3 (外露的一層或正面) outside; the ri...
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They not only inherit the advantages of bezier curves and b - spline curves, also can be used to represent straight lines precisely and some remarkable transcendental curves precisely, such as circular arc, ellipse, cardioids and twisted pair line etc. especially, the uniform t - b - spline curve of three degrees is smoother than b - spline curve and c - b - spline curve of the same order
此外由於它們還具有三角函數的優點,故既可以精確表示直線段、二次多項式曲線段又可以精確表示圓弧、橢圓弧等二次曲線以及心臟線、雙紐線等超越曲線。特別地, 3次均勻t - b樣條曲線曲面比同階均勻b樣條( c - b樣條)曲線曲面具有更高的光滑度。Normalization of quadric hypersurface equation in n - dimension affine space
維仿射空間中超二次曲面方程的規范化Firstly part of quadratic term of taylor series is chosen ; a low - dimension surface is used to approximate limit state surface ; and the modified reliability formula is derived
首次選取泰勒級數的部分二次項,用一個距原點最近點處擬合的超低維曲面近似極限狀態面。Polynomial, transcendental function, new quadratic curve, b - spline and nurbs have been used in expression of hull molded line, trapezoidal method, simpson method have been used in static calculation
在船體型線的表達方面有多項式、超越函數、新二次曲線、 b樣條函數、非均勻有理b樣條函數等。5 ohtake y, belyaev a, pasko a. dynamic mesh optimization for polygonized implicit surfaces with sharp features
最近, gielis等人將超二次曲面擴展為超形以更好地表達自然形體。分享友人