Most of what a devops person does is in fact development but it is of the non value adding variety. Basically a devops person spends the vast majority of their time configuring common off the shelf software, scripting this or that, etc.
A singular matrix is a matrix which has no inverse because its determinant is zero. If you recall, the inverse of a matrix is. 1/ ad-bc multiplied by: [ d -b ] [-c a ] If ad-bc = 0, then the inverse matrix would not exist because 1/0 is undefined, and hence it would be a singular matrix. E.g.
An inverse matrix is the matrix that is multiplied by the original square matrix to derive the identity matrix, which contains values of 1 on the diagonal and 0 elsewhere. This property makes it useful for solving systems of equations that include many variables.ype without quotes: =MINVERSE(A1:C3). Replace the cell reference A1 with that of the upper left corner of your matrix, and C3 with the cell reference of the lower right corner of your matrix. Hold down both the Ctrl and Shift keys; press Enter..