Fixed point may refer to:

• Fixed point (mathematics), a value that does not change under a given transformation
• Fixed-point arithmetic, a manner of doing arithmetic on computers
• Fixed point, a benchmark (surveying) used by geodesists
• Fixed point join, also called a recursive join
• Fixed point, in quantum field theory, a coupling where the beta function vanishes – see renormalization group § Conformal symmetry
• Temperature reference point, usually defined by a phase change or triple point.

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