Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published December 1949 | Published
Journal Article Open

The use of punched cards in molecular structure determinations. III. Structure-factor calculations of X-ray crystallography


A method is described whereby the rapid calculation of the structure factors of X-ray crystallography is accomplished on punched cards and International Business Machines. The method is sufficiently flexible to allow its application to any space group. The principles set forth may also be applied to other formerly laborious calculations, such as the application of the method of least squares to crystal-structure determinations.

Additional Information

© 1949 International Union of Crystallography. (Received 7 March 1949) We wish to thank the International Business Machines Corporation for making available some of the machines used in this work, and Mr William Chaplin, Co-operative Wind Tunnel, California Institute of Technology, for advice and helpful suggestions.

Attached Files

Published - a00183.pdf


Files (512.0 kB)
Name Size Download all
512.0 kB Preview Download

Additional details

August 19, 2023
October 23, 2023