Hello all Please could you help me i want to code a multivalued signum function that is defined by
Let x ∈ R. The multivalued signum function Sgn: R ⇒ R is defined as:
sgn(x) ={ 1 if x > 0 −1 if x < 0 [−1, 1] if x = 0.
If x ∈ R^n then the multivalued signum function Sgn: R^n⇒R^n
is defined as: Sgn(x) : = (Sgn(x1), . . . , Sgn(xn))^T
Thank you so much for your help Best regards
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