logarithmic tables
Logarithmic tables are charts that list the logarithms of numbers, making it easier to perform multiplication and division. Instead of calculating these operations directly, users can look up the logarithms of the numbers, add or subtract them, and then find the antilogarithm to get the result. This method simplifies complex calculations, especially before the advent of calculators.
These tables were widely used by mathematicians, scientists, and engineers until the late 20th century. They were particularly helpful in fields like astronomy and navigation, where precise calculations were essential. Today, logarithmic tables are less common due to the availability of digital tools, but they remain an important part of mathematical history.