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exteriorPower(ZZ,Matrix) -- exterior power
Synopsis:
Note: we may write exteriorPower_i f instead of
exteriorPower(i,f); see (symbol _,Function,Thing).
i1 : R = ZZ/2[x,y]; |
i2 : f = random(R^3,R^{3:-1})
o2 = | x x x+y |
| y x x+y |
| 0 x+y 0 |
3 3
o2 : Matrix R <--- R |
i3 : exteriorPower_2 f
o3 = | x2+xy x2+y2 0 |
| x2+xy 0 x2+y2 |
| xy+y2 0 x2+y2 |
3 3
o3 : Matrix R <--- R |
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