摘要： DescriptionThe cows are journeying north to Thunder Bay in Canada to gain cultural enrichment and enjoy a vacation on the sunny shores of Lake Superio... 阅读全文

摘要： Problem DescriptionAll you know Goldbach conjecture.That is to say, Every even integer greater than 2 can be expressed as the sum of two primes. Today... 阅读全文

摘要： DescriptionThere are several ancient Greek texts that contain descriptions of the fabled island Atlantis. Some of these texts even include maps of par... 阅读全文