indexes
English
Noun
indexes
- plural of index
- 1963, Richard Feynman, “Chapter 31, Tensors”, in The Feynman Lectures on Physics, volume II:
- A tensor has then the property that when it is summed over one index (with a vector), it gives a new vector; and when it is summed over both indexes (with two vectors), it gives a scalar.
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Usage notes
- This usage is gaining acceptance in common usage in the U.S., as opposed to the Latin-derived form indices, often used in the UK.
- The Oxford English Dictionary recommends the plural "indexes" for directory listings.
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