Cotsworth's Reciprocals for All Numbers from 1 to 10,000,000

With Direct Index Reference to Seven Significant Figures, Complete for Numbers Under 100,000, Beyond which the Extension to 10,000,000 is Rendered Easy by the Additive Differences Printed at the Foot of Each Table. Uniformly Arranged for Instant Use at a Glance

by Moses Bruine Cotsworth · 1902