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D.6.3.3 corank
Procedure from library classify.lib (see classify_lib).
- Usage:
- corank(f); f=poly
- Return:
- the corank of the Hessian matrix of f, of type int
- Remark:
- corank(f) is the number of variables occuring in the residual
singularity after applying 'morsesplit' to f
Example:
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