Extremal values of double and triple trigonometric functions
Extremal values of double and triple trigonometric functions
复制标题
二重和三重三角函数的极值
DOI:
10.2206/kyushujm.58.141
复制
发表时间:
2004
影响因子:
0.4
通讯作者:
M. Wakayama
中科院分区:
文献类型:
--
作者:
N. Kurokawa;M. Wakayama
We study the extremal values of the double and the triple trigonometric functions defined via the infinite products. In particular, we show that the extremal values of the triple sine function are intimately related to the mysterious value ζ(3). The results also allow us to sketch their graphs.