Assertion: matrix's rank | /r/HasProperty | the smallest number
Facets:
Source sentences:
text: The rank of A is the smallest number k such that A can be written as a sum of k rank 1 matrices, where a matrix is defined to have rank 1 if and only if it can be written as a nonzero product
text: The rank of A is the smallest integer k such that A can be factored as A = C R {\displaystyle A=CR} , where C is an m × k matrix and R is a k × n matrix.