Selecting a specific answer

if i had four values. For example,

a=100

b=-100

c=30

d=100

and i wanted the variable ‘e’ to equal the value which has been repeated (100). how would a write a function that inspects the values of a,b,c and d, determines which two are the same and equates that to the output as e. (so in the exanple. answer is e=100)

Answer 1

[Krishna Zanwar]

You can use the function any to find out if any of the variables is equal to any other variable.

any(a==[b c d])

will gave a logical 1 if 'a' is matching with any of the other variables.

You can see how to write a function here.