To introduce Ashot Avagyan, a few facts are enough: he is a veteran of the Artsakh liberation war, a long-time member of the ...

THE method of quarter squares consists in the use of the formula ab = ¼ (a+b)2 - ¼ (a-b)2 to effect the multiplication of two numbers, a and b. If we are provided with a table giving the values of ¼n2 ...