节点文献
Wallis不等式的新改进
The Reforming for Wallis′ Inequality
【摘要】 对Wallis不等式做出了新的改进.与目前掌握的文献相比,所得结果精度更高,且容易估计误差.同时还导出了(2n(2-n)1!)!!!的一个渐近展开式.
【Abstract】 New improvement for Wallis′ inequality is given.To contrast with related literature now,the accuracy of the result is sharper,and the error estimate is easily obtained.At the same time,an asymptotic expansion for(2n-1)!!(2n)!! is deduced.
- 【文献出处】 数学的实践与认识 ,Mathematics in Practice and Theory , 编辑部邮箱 ,2009年08期
- 【分类号】O178
- 【被引频次】7
- 【下载频次】100