Search results
- DictionarySlide rule/ˈslīd ˌro͞ol/
noun
- 1. a ruler with a sliding central strip, marked with logarithmic scales and used for making rapid calculations, especially multiplication and division.
Powered by Oxford Languages
noun
Powered by Oxford Languages
A slide rule is a hand-operated mechanical calculator consisting of slidable rulers for evaluating mathematical operations such as multiplication, division, exponents, roots, logarithms, and trigonometry. It is one of the simplest analog computers. Slide rules exist in a diverse range of styles and generally appear in a linear, circular or cylindrical form. Wikipedia