14 lines
		
	
	
		
			457 B
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			14 lines
		
	
	
		
			457 B
		
	
	
	
		
			C++
		
	
	
	
	
	
| #include <iostream>
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| #include <Eigen/Dense>
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| 
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| int main() {
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|   Eigen::MatrixXd m(2, 5);
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|   m.resize(4, 3);
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|   std::cout << "The matrix m is of size " << m.rows() << "x" << m.cols() << std::endl;
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|   std::cout << "It has " << m.size() << " coefficients" << std::endl;
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|   Eigen::VectorXd v(2);
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|   v.resize(5);
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|   std::cout << "The vector v is of size " << v.size() << std::endl;
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|   std::cout << "As a matrix, v is of size " << v.rows() << "x" << v.cols() << std::endl;
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| }
 | 
