public override ECFieldElement Invert()
{
//return new SecP192R1FieldElement(ToBigInteger().ModInverse(Q));
uint[] z = Nat192.Create();
SecP192R1Field.Inv(x, z);
return(new SecP192R1FieldElement(z));
}
public override ECFieldElement Divide(ECFieldElement b)
{
//return Multiply(b.Invert());
uint[] z = Nat192.Create();
SecP192R1Field.Inv(((SecP192R1FieldElement)b).x, z);
SecP192R1Field.Multiply(z, x, z);
return(new SecP192R1FieldElement(z));
}