Example /***********begin**************/ void testMatrixRow() { matrix<double> m(1920, 1080); clock_t begin,end; begin = clock(); for(unsigned int i = 0; i < m.size1(); ++i) for(unsigned int j = 0; j < m.size2(); j++) { m.insert_element(i, j, i*3 + j); } end = clock(); cout<<"time of inserting data : "<<(double)(end-begin)/CLOCKS_PER_SEC<<" "< mr(m, i); ob1.write((const char*)&mr(0), mr.size()); ob1<http://old.nabble.com/how-could-I-output-the-data-of-matrix%28ublas%29-to-tx... Sent from the Boost - Users mailing list archive at Nabble.com.