Origin is a software application for data analysis and publication-quality graphing, tailored to the needs of scientists and engineers. The application offers an easy-to-use interface for beginners, and the ability for advanced users to customize analysis and graphing tasks using themes, templates, custom reports, batch processing and programming.” The program has data processing mathematical functionality for curve fitting, signal analysis, statistics, and peak analysis. Origin also supports programming in Python and a version of C.
A 1-year subscription to the student version of OriginPro is $69, and can be purchased from their website: http://www.originlab.com/index.aspx?go=PRODUCTS/OriginStudentVersion
A slightly limited free student version is also available.