+const expair expair::conjugate() const
+{
+ ex newrest = rest.conjugate();
+ ex newcoeff = coeff.conjugate();
+ if (are_ex_trivially_equal(newrest,rest) && are_ex_trivially_equal(newcoeff,coeff)) {
+ return *this;
+ }
+ return expair(newrest, newcoeff);
+}
+