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We're Getting Mutants in the MCU - The Loop

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A **unit vector** is a vector with a magnitude of 1. The unit vector is defined by

where is a non-zero vector.

are commonly used as the unit vectors forming a basis in the directions respectively. They are often used as notation for vectors or in vector functions:

Another common set of unit vectors forming a basis is in the Frenet–Serret formulas, where represent the tangent, normal, and binormal vectors respectively.