60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
#include<cmath>
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#include<eigen3/Eigen/Core>
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#include<eigen3/Eigen/Dense>
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#include<iostream>
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int main(){
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// Basic Example of cpp
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std::cout << "Example of cpp \n";
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float a = 1.0, b = 2.0;
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std::cout << a << std::endl;
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std::cout << a/b << std::endl;
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std::cout << std::sqrt(b) << std::endl;
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std::cout << std::acos(-1) << std::endl;
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std::cout << std::sin(30.0/180.0*acos(-1)) << std::endl;
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// Example of vector
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std::cout << "Example of vector \n";
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// vector definition
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Eigen::Vector3f v(1.0f,2.0f,3.0f);
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Eigen::Vector3f w(1.0f,0.0f,0.0f);
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// vector output
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std::cout << "Example of output \n";
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std::cout << v << std::endl;
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// vector add
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std::cout << "Example of add \n";
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std::cout << v + w << std::endl;
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// vector scalar multiply
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std::cout << "Example of scalar multiply \n";
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std::cout << v * 3.0f << std::endl;
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std::cout << 2.0f * v << std::endl;
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// Example of matrix
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std::cout << "Example of matrix \n";
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// matrix definition
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Eigen::Matrix3f i,j;
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i << 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0;
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j << 2.0, 3.0, 1.0, 4.0, 6.0, 5.0, 9.0, 7.0, 8.0;
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// matrix output
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std::cout << "Example of output \n";
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std::cout << i << std::endl;
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// matrix add i + j
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std::cout << i+j << std::endl;
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// matrix scalar multiply i * 2.0
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std::cout << i * 2.0 <<std::endl;
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// matrix multiply i * j
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std::cout << i*j << std::endl;
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// matrix multiply vector i * v
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std::cout << i * v << std::endl;
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/*
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* PA 0
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*/
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// TO DO: Define point P
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Eigen::Vector2f P(2.0f,1.0f);
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// TO DO: Define rotation matrix M
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// TO DO: M * P
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return 0;
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} |