When did William Oughtred invent the slide rule?
1602
1692
1622
1655
Answer
In 1622, English mathematician and clergyman William Oughtred invented the slide rule. This analog computing instrument greatly simplified mathematical calculations by utilizing logarithmic scales to perform multiplication and division. The slide rule found widespread applications in various scientific and engineering fields until being replaced by electronic calculators.
Mastering Math with Oughtred: Deciphering the Life and Legacy of a Mathematical Virtuoso
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