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Signum Function

79143.png
 
y = f(x) = sgn (x)
 
sgn (x) = 78135.png
or sgn (x) = 78129.png
 
Domain – R; Range {–1, 0, 1}; Nature: many one, odd function
 
In general sgn (f(x)) = 78123.png
or sgn (f(x)) = 78117.png




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