Sentence examples for recreational problems from inspiring English sources

Recreational problems posed with regard to the conventional chessboard are legion.

The 17th century produced books devoted solely to recreational problems not only in mathematics but frequently in mechanics and natural philosophy as well.

Networks are related to a variety of recreational problems that involve combining or arranging points in a plane or in space.

Many combinatorial problems were posed during the 19th century as purely recreational problems and are identified by such names as "the problem of eight queens" and "the Kirkman school girl problem".

Leurechon's book, meanwhile, had found its way into Germany: Daniel Schwenter, a professor of Hebrew, Oriental languages, and mathematics, assiduously compiled a comprehensive collection of recreational problems based on a translation of Leurechon's book, together with many other problems that he himself had previously collected.

For the case k = 3 this problem was first posed during the 19th century by the British mathematician T.P. Kirkman as a recreational problem.

Despite this, those dealing with, for instance, recreational drug problems are often unaware of the role a drug's sexual effects play in continued use or, if necessary, how to bridge treatment between disciplines.

Mr. Nye, also 28, works at The Go Game, a business in San Francisco that specializes in recreational and problem-solving games and exercises for corporate employees.

Bill Kilby is a fRecreationalter based in Los Angeles.

In Germany, 9.3% reported at least one negative consequence of Internet use, especially neglect of recreational activities and problems with family/partner, work or education, and health [4].

Marijuana affects a person differently than alcohol or illicit drugs, and medical care providers need to be able to tell the difference between occasional recreational use, a problem, and addiction.