In the context of a scientific document/report which of the following sentences are acceptable? If more than one, then which is the prefered usage?
a) The nominal accuracy is in the order of 5 metres. b) The nominal accuracy is of the order of 5 metres. c) The nominal accuracy is on the order of 5 metres.
Top answer
The preposition on is correct.
— AlpheccaStars
The preposition on is correct.
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Sorry for the anonymous post. I have now registered. Can you explain why "on" is the correct preposition? For some reason it just 'sounds' the least correct to me.
Hi Nevp, thanks for registering and welcome to the Forums!
Prepositions are notoriously difficult - sometimes it is hard to know the right one for the context. In this case, "on the order of" is an idiom meaning "approximately".