8 results for “squares”
The value that squares to n.
Factors the difference of two perfect squares.
Closed form for the sum of the first n squares.
The Dwandwa (duplex) method squares any number by summing duplex values digit by digit — a general Vedic squaring technique.
The sum of the first n odd numbers is always a perfect square, exactly n².
a² − b² = (a + b)(a − b). Turns a subtraction of squares into an easy product.
Two numbers equally spaced around a middle value m multiply to m² − d², using the difference of squares.
Bracket the number between two perfect squares, then refine with a quick average step.