= Constant function
{wiki=Constant_function}
A constant function is a type of mathematical function that always returns the same value regardless of the input. In simpler terms, no matter what value you substitute into a constant function, the output will never change; it will always be a fixed value. Mathematically, a constant function can be expressed in the form: \\\[ f(x) = c \\\] where \\( c \\) is a constant (a specific number) and \\( x \\) represents the input variable.
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