Revolutionary interactive e-books for higher studies in mathematics

Yesterday’s study materials consisted of mathematics books of paper. Teaching materials that come out today are often published ¬†both as printed books and e-books, but the content has not changed in nature; it still consists of text and figures in the form of still images. This textbook has an interactive character. It allows you to draw the points and curves and see how the figure changes in real time. If, for example you have a picture on a line which cuts a plane in one point you can see how the intersection point moves when you move the line. You can also look at three-dimensional objects by rotating them around with your finger or mouse.