Question 4 Part(2)
N=echelon(M)
Rank(N)
It came out to be a full rank matrix so Column Rank=Row Rank
Column Rank=4, Row Rank=4, Max Rank of the Matrix=4
Question 4 Part(3)
Dimension=4
Question 4 Part(4)
Ax=b
Question 4.rar （5个子文件） 
Question 4 
echelon.m 2KB
Question 4 Solution.docx 400KB Divide.m 333B Subtract.m 393B Exchange.m 380B
