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Mathematics
Of or pertaining to the study of the measurement, properties, and relationships of quantities and sets, using numbers and symbols.
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Mathematics > Measurements
minute
Mathematics; Measurements
The minute is a unit of time or of angle. As a unit of time, the minute is equal to 1⁄60 of an hour or 60 seconds. As a unit of angle, the minute of arc is equal to 1⁄60 of a ...
hour
Mathematics; Measurements
The hour is a unit of measurement of time. In modern usage, an hour comprises 60 minutes, or 3,600 seconds. It is approximately 1/24 of a mean solar day.
day
Mathematics; Measurements
A day is a unit of time. In common usage, it is an interval equal to 24 hours. It also can mean the consecutive period of time during which the Sun is above the horizon of a ...
week
Mathematics; Measurements
A week is a time unit equal to seven days. It is the standard time period used for cycles of work days and rest days in most parts of the world.
system of measurement
Mathematics; Measurements
A system of measurement is a set of units of measurement which can be used to specify anything which can be measured and were historically important, regulated and defined because ...
time zone
Mathematics; Measurements
A time zone is a region that has a uniform standard time for legal, commercial, and social purposes. It is convenient for areas in close commercial or other communication to keep ...
sidreal time
Mathematics; Measurements
Sidereal time is a time-keeping system astronomers use to keep track of the direction to point their telescopes to view a given star in the night sky. Briefly, sidereal time is a ...
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- Algebra (7603)
- Analysis (88)
- Calculus (3452)
- Cryptography (47)
- General mathematics (91)
- Geometry (11000)
- Measurements (847)
- Number theory (1128)
- Theorem (241)
- Trigonometry (598)