|  |  7.10.6.22 ncrepSubstitute Procedure from libraryncrat.lib(see  ncrat_lib).
 
Example:Usage:
ncrep s = ncrepSubstitute(q, l);
q of type ncrep, vars = (x1, ..., xg),
 points = (A1, ... , Ag) with Ai matrices of the
 same dimension and xi of type poly are nc variables
 
Return:
substitutes in Ai for xi in q
 |  | 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));
print(q);
==> lvec=
==> 0,1,0,1
==> 
==> mat=
==> x, -1,0, 0, 
==> -1,0, 0, 0, 
==> 0, 0, y, -1,
==> 0, 0, -1,0  
==> 
==> rvec=
==> 0,
==> 1,
==> 0,
==> 1 
print(s);
==> lvec=
==> 0,0,1,0,0,0,1,0,
==> 0,0,0,1,0,0,0,1 
==> 
==> mat=
==> 1, 2, -1,0, 0, 0, 0, 0, 
==> 3, 4, 0, -1,0, 0, 0, 0, 
==> -1,0, 0, 0, 0, 0, 0, 0, 
==> 0, -1,0, 0, 0, 0, 0, 0, 
==> 0, 0, 0, 0, 5, 6, -1,0, 
==> 0, 0, 0, 0, 7, 8, 0, -1,
==> 0, 0, 0, 0, -1,0, 0, 0, 
==> 0, 0, 0, 0, 0, -1,0, 0  
==> 
==> rvec=
==> 0,0,
==> 0,0,
==> 1,0,
==> 0,1,
==> 0,0,
==> 0,0,
==> 1,0,
==> 0,1 
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