Recent content by Tigers64

I guess the problem is that I don't know which norm to use, so I used det as the norm. How do you define a norm for matrices other than the det function?

Question: How do I prove the set of non-invertible matrices is unbounded? Attempt: Let A be an element of set of non-invertible matrices. det(A)=0 det(A)=0 is just the line y=0 if you have det(A) as the y-axis and the set of non-invertible matrices on the x-axis. y=0 is unbounded, so the...