The large interactive reference work primarily contains all the content for the subjects of mathematics, physics, chemistry, astronomy, biology, and computer science, as well as all the necessary formulas and values up to the high school diploma. It is consistently aligned with the guidelines of secondary education level II, making it a solid reference work for mathematics and science instruction in high schools. The well-structured layout with clear organization and distinct subject labeling makes it easy to find the desired information. The accompanying website offers additional information, including demos and screen shows. You will also find free supplements and updates there, as well as an extensive, annotated collection of links for each subject.