数学是许多不同科学的核心，也是许多不同学科的门户。它是用来表达自然定律和各种学科中许多现象的语言，包括医学心理学，社会学，生物学，经济学，计算机科学，工程学等等。在历史上，数学一直是现代理论科学的核心，为物理科学的发展提供了表达语言和理论框架。从那以后，它已成为生命科学，社会科学和计算机科学的中心。宾夕法尼亚大学的数学涵盖了数学和发展领域的传统核心领域（宾夕法尼亚大学是将逻辑应用于理论计算机科学的世界领先中心之一）。本专业的目标是帮助学生获得对数学的理解和使用数学的能力。数学专业为数学研究生学习提供了坚实
At the core of modern theoretical science, mathematics has historically provided an expressive language and a theoretical framework for advances in the physical sciences. It has since become central in the life and social sciences and in computer science. Mathematics at Penn embraces traditional core areas of mathematics and developing areas (Penn is one of the world's leading centers in the application of logic to theoretical computer science). The goals of the major program are to assist students in acquiring both an understanding of mathematics and the ability to use it. The mathematics major provides a solid foundation for graduate study in mathematics and a background for study in economics, the biological sciences, the physical sciences, and engineering, as well as many non-traditional areas.