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n元椭球面的判定及所围椭球体的体积
Areas(Volumes) of n-dimension Ellipsoid by Quadratic Curve(Surface) Enclosed
【摘要】 给出n元二次曲面是椭球面的充要条件和所对应的n维椭球体的体积计算公式,并且条件和体积的计算中只用到曲面中的系数行列式,使判定和体积计算较为方便.
【Abstract】 This paper deals with area(volume) calculation of enclosed graphic by quadratic curve(surface).The result has been generalized to the case of the volume calculation of enclosed graphic by n-variete quadratic surface.At last calculating formulae results of n-dimension enclosed graphic are given.
【关键词】 二次曲面;
n维椭球体;
体积;
欧拉函数;
【Key words】 quadratic curve(surface); n-dimension ellipsoid; volume; Euler Function;
【Key words】 quadratic curve(surface); n-dimension ellipsoid; volume; Euler Function;
【基金】 长春师范学院自然科学基金(2010019).
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2013年10期
- 【分类号】O186.11
- 【被引频次】2
- 【下载频次】213