DOUBLE FOURIER-SYNTHESIS. PUNCHED CARD METHOD

Abstract

The use of "Punched Card" methods in crystal structure analysis has the advantage of speeding up the enormous 'amount of computational work involved in these investigations. In this paper, two methods are suggested for the evaluation of electron density distributions using double Fourier-Synthesis. Of these two methods, complete details have been worked out for the latter one using the Tabulator for summing up the series.