# A symbolic analysis of relay and switching circuits

```@article{Shannon1938ASA,
title={A symbolic analysis of relay and switching circuits},
author={Claude E. Shannon},
journal={Transactions of the American Institute of Electrical Engineers},
year={1938},
volume={57},
pages={713-723}
}```
• C. Shannon
• Published 1938
• Mathematics
• Transactions of the American Institute of Electrical Engineers
In the control and protective circuits of complex electrical systems it is frequently necessary to make intricate interconnections of relay contacts and switches. Examples of these circuits occur in automatic telephone exchanges, industrial motor-control equipment, and in almost any circuits designed to perform complex operations automatically. In this article a mathematical analysis of certain of the properties of such networks will be made. Particular attention will be given to the problem of…
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