# isVirtual(...,Strategy=>...) -- changes strategy from computing homology to computing minors of boundary maps

## Description

If Strategy is set to Determinantal, isVirtual will check whether the given chain complex is a virtual resolution by checking the depth of the saturation of the ideals of maximal rank from the boundary maps. See Theorem 1.3 of [Loper, arXiv:1904.05994].

## Further information

• Default value: null
• Function: isVirtual -- checks whether a chain complex is a virtual resolution
• Option key: Strategy -- an optional argument