Abstract
IT would be difficult to exaggerate the importance at the present time of easy and rapid methods of solving the day-to-day mathematical problems that arise in military survey work. A large number of such methods, many developed by Dr. Comrie himself, depended in the past on the use of the German Brunsviga Twin 13z calculating machine. The fact that this machine is now, naturally, unobtainable might well have seriously handicapped our fighting forces. It is therefore extremely gratifying to learn that a substitute has been provided by the device of building together in pairs the well-known American Marchant machines. As Dr. Comrie remarks, this improvisation does not produce the ideal twin machine, but at least it gives us a serviceable and urgently needed war weapon.
The Twin Marchant Calculating Machine and its Application to Survey Problems
By Dr. L. J. Comrie. Pp. 40 + 3 plates. (London: Scientific Computing Service, Ltd., 1942.) 10s.
Enjoying our latest content?
Log in or create an account to continue
- Access the most recent journalism from Nature's award-winning team
- Explore the latest features & opinion covering groundbreaking research
or
Rights and permissions
About this article
Cite this article
L., S. The Twin Marchant Calculating Machine and its Application to Survey Problems. Nature 149, 425 (1942). https://doi.org/10.1038/149425b0
Issue date:
DOI: https://doi.org/10.1038/149425b0
