今天,在世界上几乎没有人不知道七巧板和七巧图,它在国外被称为“唐图”(Tangram),意思是中国图(不是唐代发明的图)。七巧板的历史也许该追溯到我国先秦的古籍《周髀算经》其中有正方形切割术,并由之证明了勾股定理。 Today, almost no one in the world does not know the jigsaw puzzles and tangrams. It is known abroad as the Tangram, which means the Chinese map (not a figure invented by the Tang Dynasty). The history of the jigsaw puzzle may be traced back to the ancient books of the Zhouqin Sutra of the pre-Qin period in China, which had a square cutting technique and proved the Pythagorean theorem.