How to compare a number with all the values of a vector?

*I have the following function: *

function Z = imp (alpha) % alpha is a scalar

A = [10 20 30 40 50 60 70] % I have this vector

     if
      alpha = A *%any value of A*
            true *% If a value of alpha is equal to any value of A the statement is true otherwise it is false*
      else
          false
end

I want to compare alpha with all the values of vector A. If alpha is equal to any one value of A, then the statement is true. How do I do this in code?

Answer 1

[Adam Danz]

if ismember(alpha, A)

or

if any(A == alpha)

Answer 2

[Ahmad Hasnain]

Thanks