Every decorative tradition includes the same limited set of pattern types, though sometimes there are cultural reasons for breaking symmetry or omitting certain types.

Design symmetry means that if one method causes an effect, the logically opposite method should cause the opposite effect. In this Java tip, David Petersheim discusses why this can be a subtle ...

This type of data redundancy is called symmetry. "But when you try to capture both of these optimizations, the situation becomes quite complex," Ahrens says.

Existing techniques for optimizing algorithms can be cumbersome and typically only allow developers to capitalize on either sparsity or symmetry—two different types of redundancy that exist in ...