>> a = [1, 2]
a =
 
        1        2
 
>> b = [0, 1, 2]
b =
 
        0        1        2
 
>> c = a + [2, 2]
c =
 
        3        4
 
>> 2 * b
ans =
 
        0        2        4
 
>> a=1:3 a = 1 2 3 >> a=1:3:8 a = 1 4 7
>> sin([0, 1]) ans = 0.00000 0.84147