Question

I linear algebra, what's a pivot column?

Answer 1

In*

Answer 2

pivot columns are the columns that contain the leading 1's in the row

Answer 3

Ohh thanks!

Answer 4

*When in row echelon form

Answer 5

Not reduced?

Answer 6

row echelon form is fine, reduced row echelon form works too (but is not required).

Answer 7

Ohh thanks :) .

Answer 8

can you find the piviot columns of

\[\begin{pmatrix}1&1&1\\0&1&2\\2&2&5\end{pmatrix}\]?

Answer 9

There are 3 pivot columns.