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D.5.5.9 createBO

Procedure from library resolve.lib (see resolve_lib).

Usage:
createBO(J[,W][,E]);
J,W = ideals
E = list

Assume:
J = ideal containing W ( W = 0 if not specified)
E = list of smooth hypersurfaces (e.g. exceptional divisors)

Return:
list BO representing a basic object :
BO[1] ideal W, if W has been specified; ideal(0) otherwise BO[2] ideal J
BO[3] intvec
BO[4] the list E of exceptional divisors if specified; empty list otherwise
BO[5] an ideal defining the identity map
BO[6] an intvec
BO[7] intvec
BO[8] a matrix
entries 3,5,6,7,8 are initialized appropriately for use of CenterBO and blowUpBO

Example:
 


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