3.24 Coverage of a square
lattice by a rectangle
A city's geographical structure is being placed on a computer. All
are being' quantized, where the unit of quantization is 500 feet.
The quantization points
comprise a lattice that runs east-west and north-south. The board of
elections wishes to
know how many quantization points will be contained in an arbitrary
district of dimension t (east-west) and m (north-south).