diff options
Diffstat (limited to 'doc/tutorial.cpp')
| -rw-r--r-- | doc/tutorial.cpp | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/doc/tutorial.cpp b/doc/tutorial.cpp index 330fcf326..60d204ce6 100644 --- a/doc/tutorial.cpp +++ b/doc/tutorial.cpp @@ -16,14 +16,13 @@ int main(int, char **) // notice how we are mixing fixed-size and dynamic-size types. cout << "In the top-left block, we put the matrix m shown above." << endl; - // here we need to use .xpr() to allow write access to the block. - m2.xpr().block(0,1,0,1) = m; + m2.block(0,1,0,1) = m; cout << "In the bottom-left block, we put the matrix m*m, which is:" << endl << m*m << endl; - m2.xpr().block(2,3,0,1) = m * m; + m2.block(2,3,0,1) = m * m; cout << "In the top-right block, we put the matrix m+m, which is:" << endl << m+m << endl; - m2.xpr().block(0,1,2,3) = m + m; + m2.block(0,1,2,3) = m + m; cout << "In the bottom-right block, we put the matrix m-m, which is:" << endl << m-m << endl; - m2.xpr().block(2,3,2,3) = m - m; + m2.block(2,3,2,3) = m - m; cout << "Now the 4x4 matrix m2 is:" << endl << m2 << endl; // here we don't need to use .xpr() because we only need read access. |