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7.10.6.21 ncrepDim
Procedure from libraryncrat.lib (see ncrat_lib).
- Usage:
- ncrepDim(q);
q of type ncrep - Return:
- dimension of q;
returns 0 if q represents the zero-function
LIB "ncrat.lib";
ncInit(list("x", "y", "z"));
ncrat f = ncratFromString("2*x*y");
ncrep q = ncrepGet(f);
print(q);
==> lvec=
==> 0,0,0,1
==>
==> mat=
==> 0, 0, 1/2*x,-1/2,
==> 0, 1, -1/2, 0,
==> y, -1,0, 0,
==> -1,0, 0, 0
==>
==> rvec=
==> 0,
==> 0,
==> 0,
==> 1
ncrepDim(q);
==> 4
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