BettiMatrix |
Syntax |
BettiMatrix(M:IDEAL or MODULE):TAGGED("$io.Matrix") |
Description |
Example |
Use R ::= QQ[t,x,y,z]; I := Ideal(x^2-yt,xy-zt,xy); Res(I); 0 --> R^2(-5) --> R^4(-4) --> R^3(-2) ------------------------------- BettiMatrix(I); -------------- -------------- 0 0 0 0 0 3 0 0 0 0 4 0 2 0 0 -------------- ------------------------------- Untagged(BettiMatrix(I)); Mat([ [0, 0, 0], [0, 0, 3], [0, 0, 0], [0, 4, 0], [2, 0, 0] ]) ------------------------------- |
See Also |