I am having trouble understanding how to implement the four fundamental subspaces. I have read about the subject and understand the meaning but do not understand how to implement it when asked in a question. Can someone help me better grasp this.
An example question would be:
For each Matrix, accurately sketch the four fundamental subspaces on two R^2 plots so that the orthogonal pairs of subspaces are plotted together. This is the grid picture:
|1 2| |1 0| A=|3 6| B=|3 0|