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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 …) |
A day is a unit of time. In common usage, it is either an interval equal to 24 hours or daytime, the consecutive period of time during which the Sun is above the horizon.
Megasecond is equal to 1 000 000 second (unit of time), comes from a combination of the metric prefix mega (M) with the second (s). Plural name is megaseconds with symbol isMs.