sum values in a cell array

Hello! I have

a={0.006;0.45;0.1;0.23;0.12}

and I want to sum all the values in a, how can i do?

Answer 1

[Azzi Abdelmalek]

sum([a{:}])

or you can use cell2mat

b=cell2mat(a)
out=sum(b)

Answer 2

[BINGXIN YAN]

What if the cell is more complicated?

I have a{1,1}=[1,1];a{1,2}=[0,1];a{1,3}=[2,5],

and I want to sum all the values in a{1,:}(1), for example

a{1,1}(1)+a{1,2}(1)+a{1,3}(1)=1+0+2, how can I do except restoring a{1,:}(1) in another matrix or array.