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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 …) |
Inch per hour is unit of speed or velocity. It equals 0.000007055 meter per second. Plural name is inches / hour.
Foot per second is unit of speed, its symbol is fps. It equals to 0.3048 meter per second or 60 feet per minute. Plural name is feet / second.