else
else is used in if-else statements and is executed when the if condition is not satisfied.
Syntax
else (expression, ...)
Inputs
- expression
 - Type: Any expression.
 
Example
a = 1;
if a == 3
    b = 4;
elseif a == 2
    b = 7;
else
    b = -a;
end
printf('The value of b is %d', b)
      The value of b is -1