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author | 2010-06-25 10:04:35 -0400 | |
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committer | 2010-06-25 10:04:35 -0400 | |
commit | 4338834e33d3bb1168d4257ba59bb714dd91e4d3 (patch) | |
tree | 971c6a06728d06b0d27982389c10a0988649f241 /doc/examples | |
parent | a90575514adda68f7a742db0d27fc8953363e8bd (diff) |
add tutorial page 1 - the Matrix class
+ 3 examples
Diffstat (limited to 'doc/examples')
-rw-r--r-- | doc/examples/tut_matrix_coefficient_accessors.cpp | 19 | ||||
-rw-r--r-- | doc/examples/tut_matrix_resize.cpp | 18 | ||||
-rw-r--r-- | doc/examples/tut_matrix_resize_fixed_size.cpp | 12 |
3 files changed, 49 insertions, 0 deletions
diff --git a/doc/examples/tut_matrix_coefficient_accessors.cpp b/doc/examples/tut_matrix_coefficient_accessors.cpp new file mode 100644 index 000000000..6d982b6e1 --- /dev/null +++ b/doc/examples/tut_matrix_coefficient_accessors.cpp @@ -0,0 +1,19 @@ +#include <iostream> +#include <Eigen/Dense> + +using namespace Eigen; + +int main() +{ + MatrixXd m(2,2); + m(0,0) = 3; + m(1,0) = 2.5; + m(0,1) = -1; + m(1,1) = m(1,0) + m(0,1); + std::cout << "Here is the matrix m:\n" << m << std::endl; + VectorXd v(2); + v(0) = 4; + v(1) = v(0) - 1; + std::cout << "Here is the vector v:\n" << v << std::endl; + +} diff --git a/doc/examples/tut_matrix_resize.cpp b/doc/examples/tut_matrix_resize.cpp new file mode 100644 index 000000000..0392c3aa5 --- /dev/null +++ b/doc/examples/tut_matrix_resize.cpp @@ -0,0 +1,18 @@ +#include <iostream> +#include <Eigen/Dense> + +using namespace Eigen; + +int main() +{ + MatrixXd m(2,5); + m.resize(4,3); + std::cout << "The matrix m is of size " + << m.rows() << "x" << m.cols() << std::endl; + std::cout << "It has " << m.size() << " coefficients" << std::endl; + VectorXd v(2); + v.resize(5); + std::cout << "The vector v is of size " << v.size() << std::endl; + std::cout << "As a matrix, v is of size " + << v.rows() << "x" << v.cols() << std::endl; +} diff --git a/doc/examples/tut_matrix_resize_fixed_size.cpp b/doc/examples/tut_matrix_resize_fixed_size.cpp new file mode 100644 index 000000000..dcbdfa783 --- /dev/null +++ b/doc/examples/tut_matrix_resize_fixed_size.cpp @@ -0,0 +1,12 @@ +#include <iostream> +#include <Eigen/Dense> + +using namespace Eigen; + +int main() +{ + Matrix4d m; + m.resize(4,4); // no operation + std::cout << "The matrix m is of size " + << m.rows() << "x" << m.cols() << std::endl; +} |