Definition:Inverse Ratio
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Definition
Let $R = a : b$ be a ratio.
Then the inverse ratio to $R$ is $b : a$.
In the words of Euclid:
- Inverse ratio means taking the consequent as antecedent in relation to the antecedent as consequent.
(The Elements: Book $\text{V}$: Definition $13$)
Sources
- 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): inverse ratio (reciprocal ratio)
- 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): inverse ratio (reciprocal ratio)