What is the point of spending a section on dual maps, I wonder? Is the sole purpose to show that row rank equals column rank, I wonder? If so, then a lot of my time spent on exercises on dual maps might be wasted.
What is the point of spending a section on dual maps, I wonder? Is the sole purpose to show that row rank equals column rank, I wonder? If so, then a lot of my time spent on exercises on dual maps might be wasted.