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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 …) |
microgram or microgramme is equal to 10-6 gram (unit of mass), comes from a combination of the metric prefix micro (µ) with the gram (g). Plural name is micrograms.
Exagram or exagramme is equal to 1018 gram (unit of mass), comes from a combination of the metric prefix exa (E) with the gram (g). Plural name is exagrams.