7 Calculating Bases


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Figure 7: Calculating the basis

You can find homogeneous coordinates of some point or orthonormal basis of some lineal in canonic form by pressing Basis button from Calculate group. Basis Dialog appears (Figure 7). In this dialog you can choose a lineal in Construct Chooser. It may form or may not form an existing face. After that, press Get info button. The following info will be shown: lineal name, lineal specification (specification of space defined by lineal) and lineal orthonormal basis. You can repeat this procedure with another lineal. In case lineal contains one point, its homogeneous coordinates will be shown. Its specification is void since point is space of dimension zero.