功能: 将矩阵里的数据按行进行上下对调

格式: FilpUpDown(a)
a : 待处理的矩阵变量

说明: 函数执行完毕返回对调后的矩阵。注意本函数和函数{Rotate90<矩阵运算\Rotate90>}、{AntiRotate90<矩阵运算\AntiRotate90>}、{FilpLeftRight<矩阵运算\FilpLeftRight>}、{Transpose<矩阵运算\Transpose>}的区别。

例子:
a =
[ 0.58939173845080    1.54031855591588    8.35344444418021
  4.07301694344404    3.88087741745677    7.85334023081387
  7.26755981671976    8.20353627586902    7.09634816138835
  4.92396777725032    7.41600268400088    1.35134770597860 ]
b = FilpUpDown(a)// 对a执行本操作后得到如下结果
b =
[ 4.92396777725032    7.41600268400088    1.35134770597860
  7.26755981671976    8.20353627586902    7.09634816138835
  4.07301694344404    3.88087741745677    7.85334023081387
  0.58939173845080    1.54031855591588    8.35344444418021 ]