title: Is there a substitute for Pow in BigInteger in F#?
body: <p>I was using the Pow function of the BigInteger class in F# when my compiler told me : </p>
  
  <blockquote>
    <p>This construct is deprecated. This member has been removed to ensure that this
       type is binary compatible with the .NET 4.0 type System.Numerics.BigInteger</p>
  </blockquote>
  
  <p>Fair enough I guess, but I didn't found a replacement immediately.</p>
  
  <p>Is there one?  Should we only use our own Pow functions? And (how) will it be replaced in NET4.0?</p>