Cambridge, MA- January 10, 2010- Mount Holyoke, located in South Hadley, Massachusetts, has selected Worldwide Differential Calculus for Spring 2010 semester for new course: A Conceptual Approach to Calculus. This marks a shift in textbook-purchasing decisions as departments are choosing to move from expensive textbooks in favor of less-expensive/free versions, available in a multitude of formats.

The textbook is available for purchase in a bound, full-color, printed version, with an accompanying DVD containing the video lectures; the price for this printed version, with videos, is less than half of the common price for a current Calculus textbook. The PDF of the textbook is, however, free for download on the website.  Students may also purchase, on DVD’s, a study guide, a solution manual, the PDF textbook and video lectures, or the PDF textbook with the videos embedded into the PDF. Faculty and/or departments may license the source files to produce their own customized versions of Worldwide Differential Calculus, which may then be distributed freely to students, or at a profit to the departments or schools.