However this does not uniquely describe a P-system as the relative position of the 1st and 2nd components is arbitrary, giving a rotation and rescaling of the polymer . Furthermore any fully general scheme based on this would be little better than a listing of the parameters of the transforms. The number of components of a polymer or P-system is an important property. When the number of components is implied by the rest of the systematic name this part is omitted. For polymers with large numbers of components the number of components may be used instead, e.g. 48-mer, instead of octotetracontamer.
Many polymers come in mirror image forms.
Note that by the rule above the mirror images are the same polymer. Many polymers have regularly placed components. Terms will be introduced for polymers with components laid out on a grid . Annulomer is a generic term covering all polymers in which the components are laid out on concentric rings, including cyclomers , astromers , and other categories such as intermers , dendromers amd endomers , which I do not define for the time being. Crystomer is a generic term covering all polymer in which components are laid out on a regular grid.