Difference between revisions of "Constant function"
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| − | A '''constant function''' is a [[function]] which has a [[constant]] output: the value of the function does not depend on the value of its input. Equivalently, a constant function is a function whose [[range]] has only a single value. For example, <math>f(x)=4</math> is a constant function, and so is <math>g(x)=\log_{34} e^{\pi-\frac{1}{2}</math>. | + | A '''constant function''' is a [[function]] which has a [[constant]] output: the value of the function does not depend on the value of its input. Equivalently, a constant function is a function whose [[range]] has only a single value. For example, <math>f(x)=4</math> is a constant function, and so is <math>g(x)=\log_{34} e^{\pi-\frac{1}{2}}</math>. |
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Revision as of 23:52, 3 March 2016
A constant function is a function which has a constant output: the value of the function does not depend on the value of its input. Equivalently, a constant function is a function whose range has only a single value. For example, 
is a constant function, and so is 
.
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