Irish Log Animation

Irish Logarithms Animation

In 1909 Percy E. Ludgate proposed a programmable calculator which performed multiplications using a simplified kind of logarithm he called index, but it is better known as Irish logarithm.

You can test his method by entering two numbers below, and hitting the "Go"-button.
Note that the numbers should be consistent with the "base" setting!

11
 ×
10

Table 1
Table 3
Animation speed:

Base: