At the forefront of the pioneers in the field was the Greek mathematician and philosopher Claudius Ptolemaeus (c. AD 90 ?168), more popularly known to history as Ptolemy.
这一领域的先驱中最早的是希腊数学家和哲学家克劳迪•托勒密(约公元90年～168年)，历史上多称他托勒密。
George Boole was an English mathematician who helped establish the field of mathematics called symbolic logic.
乔治·布尔是一名曾帮助建立数学邻域中逻辑符号的英国数学家。
An astronomer, a physicist and a mathematician were holidaying in Scotland. Glancing from a train window, they observed a black sheep in the middle of a field.
一个天文学家，一个物理学家和一个数学家到苏格兰去度假。透过火车车窗，他们看到一个牧场里有一只黑色的羊。
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