In this section we consider the R-matrix method in which a solution is first found in an inner region 0 ≤ r ≤ a by expanding in a basis set yielding the logarithmic derivative of the wave function on the boundary r = a.

Before the competition opened, inspectors were backstage opening pots, checking vegetable bags to make sure none had been precut […].

Frank T. Davies, physicist on board the City of New York, en route to the Antarctic regions with Byrd Antarctic Expedition, reports as follows on a green flash observed off Bermuda on the evening of August 29, 1928.

Prattles and Tattles, / O'er Bottles, / Shall ſtill cheriſh my Fancy, / Better, and ſweeter, / And greater, / Than dull Tea with Nancy.