Constant function

In mathematics, a constant function is a function whose (output) value is the same for every input value. For example, the function $y(x) = 4$ is a constant function because the value of $y(x)$ is 4 regardless of the input value $x$ (see image).

单词	Identically zero
释义	Identically zero 英语百科 Constant function In mathematics, a constant function is a function whose (output) value is the same for every input value. For example, the function $y(x) = 4$ is a constant function because the value of $y(x)$ is 4 regardless of the input value $x$ (see image).
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Identically zero

Constant function