+An **objective function** is a mathematical expression representing the goal to be optimized in a problem. Its value is either minimized or maximized to identify the optimal [Solution](/wiki/solution) that best satisfies a set of conditions or constraints, central to the field of [Optimization](/wiki/optimization).
+## See also
+- [Loss Function](/wiki/loss_function)
+- [Gradient Descent](/wiki/gradient_descent)
+- [Machine Learning](/wiki/machine_learning)
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