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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 …) |
The gallon-atmosphere (imperial) is the unit of Energy.
The kilowatt hour (SI symbol kWh, kW⋅h or kW h) is a derived unit of energy equal to 3.6 megajoules.