linear

Ajay Sharma is a teacher of physics, who sprung to fame due to of course, the media. When changing something in physics is considered a big thing, it's usually someone tampering with the master equations of physics history, one most notably for its popularity is the E=Mc^2 conservation equation...

1. Can you have a dot product for two matrices that are NOT vectors and NOT identical dimensions? Everything I've seen suggests that only vector matrices with exactly the same dimensions can be used in a dot product. If thats not true, how would find the dot product of [1, 2; 3, 4] with [5...