HybridStrategy is a valid value for the Strategy Option for inverseOfMap, isBirationalMap, and isEmbedding. This is currently the default strategy. It is a combination of ReesStrategy and SimisStrategy. Increasing the HybridLimit value (default 15) will force SimisStrategy to be executed longer.

- ReesStrategy -- a strategy for determining whether a map is birational and computing its inverse
- SaturationStrategy -- a strategy for determining whether a map is birational and computing its inverse
- SimisStrategy -- a strategy for determining whether a map is birational and computing its inverse
- HybridLimit -- an option to control HybridStrategy

The object HybridStrategy is a symbol.