The algorithm at the centre of his method first checks whether the number in question is a perfect square, cube, or other power of a smaller number.

ECONOMIST: Number theory

There, under the napkin, were more than a dozen perfect golden square cheese puffs that smelled as if they had been taken out of the oven a second ago.

NEWYORKER: Luda and Milena

Sharma bowled an absolute beauty that pitched in the perfect area and moved away to square up Michael Clarke, taking his edge.

BBC: Aussies shackled by patient India

America's most expensive venue, Madison Square Garden, is a perfect example.

FORBES: Magazine Article

During the climax of the pilgrimage, crowds can reach a density of up to seven people every 10 square feet -- the perfect storm of flu transmission.

CNN: The Hajj: A perfect storm for swine flu?

Shape Match converts hand-drawn shapes such a square and lines into clean and perfect versions - perfect for creating charts and formula Match can actually solve formulas hand-written with the S Pen.

ENGADGET: blogger-avatar

The 338-square-mile Yakushima makes a perfect test case.

FORBES: Mister Natural

The yard, though only about 500 square feet, opened from the kitchen and was a perfect space for their dog, Silenzio, a Chihuahua and miniature Schnauzer mix.

WSJ: One Duplex, Three Renovations | Balance Sheet