convert binary vector value into decimal

i have

a= [0 0 1 0 1 0 1 1]

i want to convert it, into decimal value 43

Answer 1

[Mischa Kim]

Raza, use

 bin2dec(num2str(a))

Answer 2

[Azzi Abdelmalek]

a= [0 0 1 0 1 0 1 1];
b=bin2dec(sprintf('%d',a))

Answer 3

[Andrei Bobrov]

polyval(a,2)