将BigInteger提升为负数

Question

I have the following code:

System.Numerics.BigInteger k = SomeBigInteger();
System.Numerics.BigInteger M;
M = System.Numerics.BigInteger.Pow(k,-1); 
Response.Write(+M); 

However, this produces the error:

The number must be greater than or equal to zero.Parameter name: exponent

How do I raise a BigInteger to a negative number?

Answer 1

将k提高到-1幂将导致1/k ，仅当k为1时才是整数。当k大于1时，结果将不是整数，这就是BigInteger.Pow()不这样做的原因不支持提升为负面权力。