  Inhomogeneous analogues of symmetric and nonsymmetric Macdonald polynomials
were introduced by F. Knop and the author. In the symmetric case A. Okounkov
has recently proved a beautiful expansion formula which can be viewed as a
multivariable generalization of the q-binomial theorem.
  It is becoming clear that many interesting results in the symmetric setting
can also be established in the nonsymmetric setting. In this paper, we prove
the nonsymmetric analogue the binomial formula, and also discuss the limiting
case of Jack polynomials.

Quantum Algebra;Quantum Algebra