1) evolution theroem
升阶定理
2) theorems schur
降阶定理
1.
The application of the number two theorems schur of partitioned matrices on the calculation of determinant and the proof;
第二降阶定理在行列式计算中的应用
3) elevation
[英][,elɪ'veɪʃn] [美]['ɛlə'veʃən]
升阶
1.
Using the method of degree elevation to the rational Bézier curve of degree n,the rational Bézier curve is converted into the rational Bézier curve with the lowest degree and nonzero weights.
作者对转化得到的n次有理Bézier曲线进行升阶。
2.
The elevation property of Bézier curves themselves is combined with the least squares theory of generalized inverse matrices, and a new approximation method of multidegree reduction is presented.
利用 Bézier曲线本身的升阶性质 ,并结合广义逆矩阵的最小二乘理论 ,给出了一种新的降阶逼近方法 。
4) degree elevation
升阶
1.
Solutions to problems of algorithms for degree elevation of B-spline curves;
B样条曲线升阶算法中问题及其解决办法
2.
Solutions to problems of the classical algorithms for degree elevation of B spline curves;
B 样条曲线升阶经典算法中的问题及其解决办法
3.
NURBS representation of combination curve including straight line,conic and free curve segment is given by using the methods of degree elevation and interpolation for NURBS curve.
利用NURBS曲线的升阶和插值方法,给出组合曲线包括直线段、二次曲线段及自由曲线段的NURBS表示的一种方法,并给出它在船舶型线设计中的应用。
5) ascending the rank with the raising of dimension
升阶升维
6) Steady Lifting-Surface theory
定常升力面理论
补充资料：升阶
1.步步上进。 2.自堂下拾级而上。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条