If you look at a decrease in diagonal a diagonal that goes from top to bottom like this, then what we find as that this difference the column minus the row is something that will be the same along every square on that diagonal, for instance look at this diagonal it starts here.
याप्रमाणे वरपासून खालपर्यंत जाणारा diagonal पाहिल्यास, column वजा row मधील हा फरक त्या diagonal वरील प्रत्येक चौकोनात सारखेच असेल, उदाहरणार्थ पहा. हा diagonal येथून सुरू होतो.