高等数学吧 关注：472,147贴子：3,880,845
- 13回复贴，共1页
，回贴是一种责任
，顶贴是一种快乐
，获得是一种友情
。伽玛函数简单
芬 http://math.stackexchange.com/questions/9286/proving-int-0-infty-mathrme-x2-dx-dfrac-sqrt-pi2?lq=1
http://math.stackexchange.com/questions/34767/int-infty-infty-e-x2-dx-with-complex-analysis?lq=1
http://math.stackexchange.com/questions/188241/how-to-prove-int-0-infty-e-x2-dx-frac-sqrt-pi2-without-changi
http://math.stackexchange.com/questions/34767/int-infty-infty-e-x2-dx-with-complex-analysis?lq=1
http://math.stackexchange.com/questions/188241/how-to-prove-int-0-infty-e-x2-dx-frac-sqrt-pi2-without-changi
