源码

#include <iostream>
#include <armadillo>//包含armadillo头文件

using namespace std;
using namespace arma;//armadillo命名空间

int main(int argc, char** argv)
  {
  mat A = randu<mat>(4,5);//4行5列矩阵
  mat B = randu<mat>(4,5);

  cout << "A*B.t():\n" << A*B.t() << endl;//.t()向量或矩阵转置
  (A*B.t()).print("A*B.t():");

  system("pause");

  return 0;
  }

运行结果

A*B.t():
   0.9536   1.0573   1.0669   0.9087
   0.3911   0.6334   0.6719   0.7834
   1.7734   2.6922   2.1078   2.4613
   0.8542   1.1044   0.8725   0.9546

A*B.t():
   0.9536   1.0573   1.0669   0.9087
   0.3911   0.6334   0.6719   0.7834
   1.7734   2.6922   2.1078   2.4613
   0.8542   1.1044   0.8725   0.9546
请按任意键继续. . .

参考：armadillo库文档First time users: please see the short example program