?? rank_1_gen_mat.cc
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#include "mtl/matrix.h"#include "mtl/mtl.h"#include "mtl/utils.h"#include "mtl/linalg_vec.h" /*Sample Outut:Matrix A:4x3[[100,100,100],[100,100,100],[100,100,100],[100,100,100]]Vector X:[1,2,3,4,]Vector Y:[1,2,3,]A + xy':4x3[[101,102,103],[102,104,106],[103,106,109],[100,100,100]] */using namespace mtl; using namespace mtl;typedef matrix< double, rectangle<>, dense<>, column_major>::type Matrix;typedef dense1D<double> Vec; intmain(){ const int r = 4; const int c = 3; const double alpha = 1; Matrix A(r,c); Vec y(c),x(r); //initialize the arrays A and Y for (int j = 0; j < c; ++j){ y[j] = j+1; for (int i = 0; i < r; ++i) A(i,j) = 100; } //initialize X for (int i=0;i<r;++i) x[i] = i+1; //print a x y std::cout << "Matrix A:"; print_all_matrix(A); std::cout << "Vector X:"; print_vector(x); std::cout << "Vector Y:"; print_vector(y); //do the update rank_one_update(A, scaled(x, alpha), y); //print result std::cout << "A + xy':"; print_all_matrix(A);}?? 快捷鍵說明
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