Commands

With the aid of commands we can produce new and change existing objects. Intersecting two lines g and h produces a new point, for example: S = Intersect[g,h] (4.3.4).

A command's result may be named by entering a label followed by =. In our example S = Intersect[g, h] the new point is named S.

You can also use indices within the names of objects: A₁ resp. s_AB is entered as A_1 resp. s_AB.