Introduced soon after ordinary hypergeometric functions, the
q functions have long been studied as theoretical generalizations of hypergeometric and other functions.
Mathematica for the first time allows full numerical evaluation of
q functions, as well as extensive symbolic manipulation—allowing routine use of
q functions in closed forms for sums, products, recurrence equation solutions, and more.
Sum,
Product — compute sums and products involving
q functions
RSolve — solve
q-recurrence relations