public override ECFieldElement Invert()
{
// return new SecP160R2FieldElement(ToBigInteger().modInverse(Q));
uint[] z = Nat160.Create();
SecP160R2Field.Inv(x, z);
return(new SecP160R2FieldElement(z));
}
public override ECFieldElement Divide(ECFieldElement b)
{
// return Multiply(b.invert());
uint[] z = Nat160.Create();
SecP160R2Field.Inv(((SecP160R2FieldElement)b).x, z);
SecP160R2Field.Multiply(z, x, z);
return(new SecP160R2FieldElement(z));
}
