image_framework_ymj/include/eigen3/doc/snippets/TopicAliasing_mult2.cpp
2024-12-06 16:25:16 +08:00

11 lines
230 B
C++
Executable File

MatrixXf matA(2,2), matB(2,2);
matA << 2, 0, 0, 2;
// Simple but not quite as efficient
matB = matA * matA;
cout << matB << endl << endl;
// More complicated but also more efficient
matB.noalias() = matA * matA;
cout << matB;