Mathematics

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

metric time

Mathematics; Measurements

Metric time is the measure of time interval using the metric system, which defines the second as the base unit of time, and multiple and submultiple units formed with metric ...

calendar

Mathematics; Measurements

A calendar is a system of organizing days for social, religious, commercial or administrative purposes. This is done by giving names to periods of time, typically days, weeks, ...

Gregorian calendar

Mathematics; Measurements

The Gregorian calendar is internationally the most widely used civil calendar. It has been the unofficial global standard for decades, recognised by international institutions ...

Julian calendar

Mathematics; Measurements

The Julian calendar was a reform of the Roman calendar. It was the predominant calendar in most of Europe, and in European settlements in the Americas and elsewhere, until it was ...

solar time

Mathematics; Measurements

Solar time is a reckoning of the passage of time based on the Sun's position in the sky. The fundamental unit of solar time is the day. Two types of solar time are apparent ...