Take it easy, bra!
the ornate figurework on an ancient vase
An echelon matrix is a matrix, not necessarily square, with the following two properties: (i) There is at least one non-zero entry; rows consisting entirely of zeros, if any, lie below rows with at least one non-zero entry. (ii) In each non-zero row after the first, the left-most non-zero entry lies to the right of the left-most non-zero entry in the preceding row. […] In each of the non-zero rows of an echelon matrix, the left-most non-zero entry is called the pivot, […]
Yet the blood lust was on me now. I found myself on my feet emptying one magazine, then the other, clicking open the breech to re-load, snapping it to again, while cheering and yelling with pure ferocity and joy of slaughter as I did so.
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