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Slide rule
01
regra de cálculo, regra deslizante
a mechanical analog device used for mathematical calculations, consisting of two logarithmic scales that slide past each other
What is a "slide rule"?
A slide rule is a mechanical device used for performing mathematical calculations, particularly multiplication, division, and functions like square roots and logarithms. It consists of a ruler with a sliding central part, and scales marked along its length. By sliding the parts of the rule, users can align numbers and quickly find the results of calculations. The slide rule was widely used by engineers, scientists, and mathematicians before the advent of electronic calculators. While it has mostly been replaced by digital tools, it remains an important part of the history of calculating devices due to its efficiency and portability.
Example
Before the advent of calculators, engineers and scientists relied on slide rules for complex calculations.
The architect used a slide rule to scale down the dimensions of the building blueprint.
She inherited her grandfather 's slide rule, which he used during his engineering career.
Exemplo
Before the advent of calculators, engineers and scientists relied on slide rules for complex calculations.
The architect used a slide rule to scale down the dimensions of the building blueprint.
She inherited her grandfather's slide rule, which he used during his engineering career.
The physics student mastered the use of the slide rule to solve problems in his experiments.
He demonstrated how to perform multiplication and division using a slide rule during the math class.
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