This option together with LocStrategy determines a strategy for `localCohom(...Ideal...)` and `localCohom(...Ideal, Module...)`.

**Walther**-- the algorithm of U. Walther that uses Cech complex.**LocStrategy => null**-- used only for`localCohom(...Ideal...)`, localizations are done by straitforward computation of annihilators and b-polynomials as described in [1].**LocStrategy => OaTaWa**-- localizations are done following Oaku-Takayama-Walther method.**LocStrategy => Oaku**-- localizations are done following Oaku's algorithm.**OaTa**-- restriction algorithm is used, which is due to T. Oaku and N. Takayama [2]

**[1]**U. Walther,*Algorithmic computation of local cohomology modules and the local cohomological dimension of algebraic varieties (JPAA (139), 1999.)***[2]**Oaku, Takayama*Algorithms for D-modules...*

- Default value: Walther
- Function: localCohom -- local cohomology
- Option name: Strategy -- name for an optional argument