The most up-to-date access to elementary quantum mechanics. Based on the interactive program Interquanta and its extensive 3D colour graphic features, the course guides its readers through computer experiments covering all aspects of quantum mechanics. A wide variety of more than 250 detailed, class- tested problems, provide students with unique practical experience in using such hard-to-visualise concepts as complex amplitudes, eigenvalues, and scattering cross sections. This 3rd edition includes three program versions: one requiring a coprocessor, one that can run without it, and a third program version optimised for 32-bit processors. For lecturers and teachers looking for excellent, hands-on classroom demonstrations for their quantum mechanics course.