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Symbol | Definition |
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≡ | exactly equal |
≈ | approximately equal to |
= | equal to |
digits | indicates that digits repeat infinitely (e.g. 8.294 369 corresponds to 8.294 369 369 369 369 …) |
Hectogram or hectogramme is equal to 100 gram (unit of mass), comes from a combination of the metric prefix hecto (h) with the gram (g). Plural name is hectograms.
The long or imperial hundredweight of 8 stone (112 lb or 50.802345 kg) sees informal use in the imperial system but according to Schedule 1, Part VI of the Weights and Measures Act 1985, is no longer to be used for trade after the Act came into force.