14 lines
481 B
C++
14 lines
481 B
C++
#include <Eigen/Dense>
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#include <iostream>
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int main() {
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Eigen::Array22f m;
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m << 1, 2, 3, 4;
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Eigen::Array44f a = Eigen::Array44f::Constant(0.6);
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std::cout << "Here is the array a:\n" << a << "\n\n";
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a.block<2, 2>(1, 1) = m;
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std::cout << "Here is now a with m copied into its central 2x2 block:\n" << a << "\n\n";
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a.block(0, 0, 2, 3) = a.block(2, 1, 2, 3);
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std::cout << "Here is now a with bottom-right 2x3 block copied into top-left 2x3 block:\n" << a << "\n\n";
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}
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