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7.10.6.23 ncrepEvaluate

Procedure from library ncrat.lib (see ncrat_lib).

Usage:
matrix M = ncrepEvaluate(q);

Return:
for q=(u, Q, v) calculate -u*Q^(-1)*v

Example:
 
LIB "ncrat.lib";
ncInit(list("x", "y", "z"));
ncrat f = ncratFromString("x+y");
ncrep q = ncrepGet(f);
matrix A[2][2] = 1, 2, 3, 4;
matrix B[2][2] = 5, 6, 7, 8;
ncrep s = ncrepSubstitute(q, list(x, y), list(A, B));
matrix M = ncrepEvaluate(s);
print(M);
==> 6, 8,
==> 10,12


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