casacore::ImageInterface<casacore::Float>& imJones);
// Instantiate from a Table
// PBMath(const casacore::Table& theTable, casacore::Int row);
// copy ctor: copies the reference counted pointer
PBMath(const PBMath &other);
//operator= returns a reference to the PBMath; reference counted pointer
PBMath& operator=(const PBMath& other);
// comparison operator: just checks that the objects are same
// (could have two different objects with identical data, these are treated
casacore::Bool operator==(const PBMath& other) const;
// comparison operator: just checks that the objects are different