Arctan, or arctangent, is a mathematical function that calculates the angle between a given point and the x-axis in a two-dimensional plane. It is the inverse of the tangent function and is used to calculate angles in trigonometry. Arctan is an important tool in mathematics, physics, and engineering.

An arctan calculator is a type of calculator that is used to calculate the inverse tangent (arctangent) of a given number. It is used to calculate the angle of a triangle when given the length of two sides.

Arctan is the inverse of the tangent function. To calculate Arctan, you can use the formula Arctan(x) = tan-1(x). You can also use a calculator to calculate Arctan.

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