﻿功能:求雅克比椭圆Dn

格式: JacobianDn(u, k)

u  : 由{EllipticF<矩阵运算\EllipticF>}函数输出的值.
k  : 一个度量模数的参数


说明:
1.
$$
\mathbf{JacobianAmp}(u,k) = \int \mathbf{JacobianDn}(x,k)dx
$$

参考:{Jacobi椭圆函数<https://mathworld.wolfram.com/JacobiEllipticFunctions.html>}

例子:
u= [ 0.25000000000000    0.68000000000000 ]
d = JacobianDn(u, 0.1)//回车得到如下结果
d =
[ 0.99969397122270    0.99802347824481 ]