Proposed resolution:

This wording is relative to N4296.

1. Change [complex.value.ops] around p9 as indicated

   template<class T> complex<T> polar(const T& rho, const T& theta = 0);
   

   -?- Requires: rho shall be non-negative and non-NaN. theta shall be finite.

   -9- Returns: The complex value corresponding to a complex number whose magnitude is rho and whose phase angle is theta.