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author | Jitse Niesen <jitse@maths.leeds.ac.uk> | 2010-07-22 15:53:21 +0100 |
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committer | Jitse Niesen <jitse@maths.leeds.ac.uk> | 2010-07-22 15:53:21 +0100 |
commit | 403e672587826873e8b13bd21b727cdc53256ee2 (patch) | |
tree | c6ef20738bbcc65f1ec57b2f32b19fbb58c6bc03 /doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp | |
parent | 96ba7cd6557769e01778441cdf7855295542aad0 (diff) |
Extend tutorial page 5: Advanced initialization.
Diffstat (limited to 'doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp')
-rw-r--r-- | doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp b/doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp new file mode 100644 index 000000000..cb7457652 --- /dev/null +++ b/doc/snippets/Tutorial_AdvancedInitialization_ThreeWays.cpp @@ -0,0 +1,20 @@ +const int size = 6; +MatrixXd mat1(size, size); +mat1.topLeftCorner(size/2, size/2) = MatrixXd::Zero(size/2, size/2); +mat1.topRightCorner(size/2, size/2) = MatrixXd::Identity(size/2, size/2); +mat1.bottomLeftCorner(size/2, size/2) = MatrixXd::Identity(size/2, size/2); +mat1.bottomRightCorner(size/2, size/2) = MatrixXd::Zero(size/2, size/2); +std::cout << mat1 << std::endl << std::endl; + +MatrixXd mat2(size, size); +mat2.topLeftCorner(size/2, size/2).setZero(); +mat2.topRightCorner(size/2, size/2).setIdentity(); +mat2.bottomLeftCorner(size/2, size/2).setIdentity(); +mat2.bottomRightCorner(size/2, size/2).setZero(); +std::cout << mat2 << std::endl << std::endl; + +MatrixXd mat3(size, size); +mat3 << MatrixXd::Zero(size/2, size/2), MatrixXd::Identity(size/2, size/2), + MatrixXd::Identity(size/2, size/2), MatrixXd::Zero(size/2, size/2); +std::cout << mat3 << std::endl; + |