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5.1.120 regularity

Syntax:
regularity ( list_expression )
regularity ( resolution_expression )
Type:
int
Purpose:
computes the regularity of a homogeneous ideal, resp. module, from a minimal resolution given by the argument.
Note:
If applied to a non minimal resolution only an upper bound is returned.
If the input to the commands res and mres is homogeneous the regularity is computed and used as a degree bound during the computation unless option(notRegularity); is given.
Example:
 
See list; minres; mres; option; res; resolution; sres.

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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.