Now you are in the subtree of Math public knowledge tree. 

Definition of rank of a matrix

Created over 8 years ago, updated 25 days ago

Definition: The rank of a matrix $A$, denoted $\text{rank}(A)$, is the dimension of the column space (equivalently, the row space). It equals the maximum number of linearly independent rows or columns, and also equals the number of pivots in the row echelon form.