# sourceInversionFactor(...,Strategy=>...) -- Determines the desired Strategy in each function.

## Description

In sourceInversionFactor, isBirationalMap, isBirationalOntoImage, isEmbeddinga and inverseOfMap, Strategy may assumed any of three options ReesStrategy, SimisStrategy or HybridStrategy (default). These functions as well as jacobianDualMatrix may also attain the Strategy=>SaturationStrategy or ReesStrategy (default).

## Further information

• Default value: HybridStrategy
• Function: sourceInversionFactor -- Computes the the common factor among the the components of the composition of the inverse map and the original map.
• Option key: Strategy -- an optional argument