Imperial Collection of Mathematical Essentials, Vol. 3

Table of the Imperial Selections of the Essence of Numbers and Principles

This table displays the common logarithms (base 10) for numbers 20001 through 20100. In traditional layout, the right column is the start of the sequence. The first column represents the integer being calculated. The middle column, "430", represents the characteristic (the integer part, 4) and the first two digits of the mantissa (.30), which remain constant for this entire page. To find the full logarithm for 20001, one combines the prefix 4.30 with the value in the third column to get 4.3010517098.