#redirect[[en:Mathematics]]
Mathematics refers to one of the main branches of [[science]]. It is the most fundamental of all branches, being necessary to all other sciences, and is the most "pure", enabling (in theory) absolute [[precision]] and [[accuracy]] because of its abstract nature. In actuality, there are mathematical systems, such as [[chaos theory]], that preclude absolute precision. Mathematics refers to the science of using and manipulating [[number|numbers]] and quantifiable values. It is, in turn, divided into many categories, including but not limited to:
*Arithmetic, the science of increasing or decreasing numeric quantities by direct operations between two or more numbers. These operations include addition, subtraction, division, and multiplication.
*Geometry, the science of measuring, assessing and predicting shapes (dimensionality).
*Trigonometry, the science of measuring, predicting, and using angles and circular functions.
*Algebra, the science of numeric problem-solving by using substituted abstractions for unknown values.
*Calculus, the science of manipulating numeric values in multiple dimensions, especially addressing rates of changes and additions of tensors (including vectors).
*Statistics, the science of estimating uncertain values and the level of that uncertainty, especially probabilities.
In accordance with the needs of various branches of mathematics, there are many [[number system|number systems]].
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