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PolyRedDisc

Returns the reduced discriminant of a separable polynomial.

Syntax:

d := PolyRedDisc(f);

integer
  d  
polynomial
  f  

See also:  PolyDisc

Description:

Returns the reduced discriminant d\inZ of a separable polynomial f\inZ[x], {\Bbb F}_q[x].


Example:

The discriminant of x^4 + 73*x^2 - 280*x - 2399:

kash> f := Poly(Zx, [1, 0, 73, -280, -2399]);
x^4 + 73*x^2 - 280*x - 2399
kash> PolyRedDisc(f);
> 270382963510


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