# CM2Residual -- Strategy for eliminationMatrix.

## Synopsis

- Usage:
`eliminationMatrix(..., Strategy => CM2Residual)`

Consequences:

- Suppose given a homogeneous ideal locally complete intersection Cohen-Macaulay of codimension 2,
*J=(g*_{1},..,g_{n})
- , such that
*I=(f*_{1},..,f_{m})
- is included in J and (I:J) is a residual intersection. Let H be the matrix that I=J.H. Let R be the matrix of the first syzygies of J. This function computes an elimination matrix corresponding to the residual resultant over V(I) over V(J).