Adding the arrays number

Hi to all, I have generated random numbers

a = 0
da = rand(1,10)

now i want to add a+da so that the previous result add to next rand no. for example

a = 0
da = 1 2 3 4
a_new = 0+1 = 1

in the next step

a_new = 1+2 =3
in the next step
a_new = 3+3 = 6
in the next step
a_new = 6+4 =10 
etc

Answer 1

[Walter Roberson]

t = [a da];
t(1:end-1) + t(2:end)

[Offroad Jeep]

kindly see the question ..... your answer is not working......... kindly check it thanks...........

[Walter Roberson]

a_new = cumsum(da);