threed-beam-fea/ext/eigen-3.3.4/doc/snippets/MatrixBase_diagonal_templat...

6 lines
274 B
C++

Matrix4i m = Matrix4i::Random();
cout << "Here is the matrix m:" << endl << m << endl;
cout << "Here are the coefficients on the 1st super-diagonal and 2nd sub-diagonal of m:" << endl
<< m.diagonal<1>().transpose() << endl
<< m.diagonal<-2>().transpose() << endl;