What is the frame rule?

once considered one of the most valuable tools in learning the foundations of advanced mathematics, the rule was part of the standard school equipment for junior and senior high school up to 70 years. With a history that goes back to the 17th century, the frame rule is used by two additional logarithmic standards to perform tasks of rapid distribution and multiplication. Before mass production of pocket calculators and personal computers, the rules of the image were considered to be a more reliable means of work equations than the use of paper and pencil.

The basic concept of the film Rule was developed in the first years of the 17th century for Edmund Gunter's efforts from Oxford. The oldest patterns for the device included a single scale of logarithms and were arranged to allow easy multiplication and division. During the 30th of the 20th century William of Cambridge began the practice of using two rules of Gunter Slide in the approach side by side. This is a leading of the proposal of a image rule that is known to most people.

SpoLU with two logarithmic scales, more advanced image rules often contained features that helped with other types of calculation. The binary film rule was first offered at the age of 30, and more easily created features involving the addition and subtraction of fractions. Over time, comprehensive possibilities of images of the use of devices with tasks such as working trigonometric equations, square roots and exponentization

While a rectangular rule of linear slip is the most frequently recognized design, in fact there are other versions, many of which allow a wide range of calculations. The rules of the circular image were often used in industries such as construction, architecture and other professions that required accurate mathematical calculations. The rule of the cylindrical image is still used in a particular part of the world and as wellLádá.

Although the slide rule has fallen today in use, there are still devices. One of the main advantages of maintaining the image rule is that the device does not require any energy source and no upgrades to accurately process equations.