If I want to multiply the above 3 matrices, then I only need to find the top-right, and the entry below it in the inverse matrix (as all others will be zero).
How do I go about finding only a few entries in a large inverted matrix like this?
If I want to multiply the above 3 matrices, then I only need to find the top-right, and the entry below it in the inverse matrix (as all others will be zero).
How do I go about finding only a few entries in a large inverted matrix like this?