| BettiMatrix |
| Syntax |
BettiMatrix(M: IDEAL|MODULE|LISTResolution) |
| Description |
| Example |
/**/ Use R ::= QQ[t,x,y,z];
/**/ I := ideal(x^2-y*t, x*y-z*t, x*y);
/**/ PrintRes(I);
0 --> R^2(-5) --> R^4(-4) --> R^3(-2)
/**/ BettiMatrix(I);
matrix(ZZ,
[[0, 0, 0],
[3, 0, 0],
[0, 0, 0],
[0, 4, 0],
[0, 0, 2]])
/**/ PrintBettiMatrix(I);
-- --> --> --
0 0 0
0 0 3
0 0 0
0 4 0
2 0 0
-- --> --> --
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| See Also |