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On the Facilities Afforded in the Commutation System by the Introduction of Columns of Differences

Published online by Cambridge University Press:  18 August 2016

Samuel L. Laundy
Samuel L. Laundy*
Affiliation:
Eagle Life Office
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Abstract

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Type
Correspondence
Information
Journal of the Institute of Actuaries , Volume 8 , Issue 3 , April 1859 , pp. 168 - 174
Copyright
Copyright © Institute and Faculty of Actuaries 1860

References

page 169 note * Professor De Morgan adopted the symbols S x|n and R x|n as an abbreviated form for S x –S x+n –nN x+n and R x –R x+n –nM x+n —Companion to Almanac, 1840, p. 8.