Not a Penny More, Not a Penny Less the book was developed and published by Domark, and released in 1987 for the Amstrad CPC, Atari XL, BBC Micro, Commodore 64 and ZX Spectrum computers. Not a Penny More, Not a Penny Less Not a Penny More, Not a Penny Less was Jeffrey Archer's first novel, first published in 1976. It was said to have been inspired by Archer's real-life experience of near-bankruptcy. Harvey Metcalfe, over 40 years, has mastered the shady deal in advancing from messenger boy to mogul. But by selling inflated oil stock, he has cheated the wrong men - Stephen Bradley, an American professor at
Penny graph Penny graph In geometric graph theory, a penny graph is a contact graph of unit circles. That is, it is an undirected graph whose vertices can be represented by unit circles, with no two of these circles crossing each other, and with two adjacent vertices if and only if they are represented by tangent circles. More simply, they are the graphs formed by arranging pennies in a non-overlapping way on a flat surface, making a vertex for each penny, and making an edge for each two pennies that touch. Penny graphs have also been called unit coin graphs, because they