Adding Zero to the first index of an array

I have an array

A = [1 2 3 -3 -2 -1 0 0 0] 

of

size 1x9

I am trying to add zero at first index of this array. The result should be

Result = [0 1 2 3 -3 -2 -1 0 0 0] 

Making the size of array

1x10

I have tried

A(1,:)=[];

Also

Idx=[1];
c=false(1,length(A)+length(Idx));
c(Idx)=true;
result=nan(size(c));
result(~c)=A;
result(c)=0

They both does now work for me.

Can someone guide me on this.

Answer 1

[David Hill]

Result=[0 A];

[Shahab Khan]

Thank you. After your answer, I figure out why i was having problem. My array was vertical not horizental. I have transposed it and it worked. Thanks.