Mathematical tileとは 意味・読み方・使い方

Mathematical tiles are a building material used extensively in the southeastern counties of England—especially East Sussex and Kent—in the 18th and early 19th centuries. They were laid on the exterior of timber-framed buildings as an alternative to brickwork, which their appearance closely resembled. A distinctive black variety with a glazed surface was used on many buildings in Brighton (now part of the city of Brighton and Hove) from about 1760 onwards, and is considered a characteristic feature of the town's early architecture. Mathematical tiles had an extra price advantage during the time of the brick tax (1784–1850), although later there was a tax on tiles also.