Lecture
This lecture introduces the concept of axonometry as a projection of space onto a plane parallel to a given direction. It covers topics such as representation of points, image formation, and the kernel of the projection. The lecture also discusses cavalier axonometry, defining it as an oblique projection of space. Properties of cavalier axonometry, including the representation of figures and the appearance of axes, are explained. Examples are provided to illustrate the application of axonometry in determining the true size of segments and constructing images in different planes.