Question

What is Signum function , Tell in brief

Answer 1

==================================== A Signum function written as sgn(x) is defined as sgn(x) = x/ |x| or |x| / x.

sgn(x) = -1, if x<0

sgn (x) = 0, if x =0

sgn ( x) = 1, if x>0.

The domain of the Signum function is R.
The range of Signum function is { -1,0,1}.

===================================

Refer the attachment of Graph of Signum function.

Hope helped!

Answer 2

Answer:

signum function,

     the important concept of calculus.its actual meaning is

y = \frac{|x|}{x}  

i.e y = 1 when x >0

      = -1 when x<0

      = 0 when x = 0

Step-by-step explanation: