Add element to a given vector

I have a vector of the format:

x = [X1 X2 … Xn]

I want to add an element to the end, X(n+1). How do I do that?

x = [ X1 X2 .. Xn X(n+1) ]

ex: x = [ 1 4 2 8]

newX = [ 1 4 2 8 9]

A little help, please!

Answer 1

[per isakson]

One way

>> x = 1:6
x =
     1     2     3     4     5     6
>> x(end+1)=17
x =
     1     2     3     4     5     6    17
>> 

[steve Brian]

I can't do with a for loop to look for the final elements, then add to the last element that n + 1?

Because, I have a vector of n elements, and I want to add them to n + 1 at the end, without specifying the element

[per isakson]

I'm not sure I understand. What about this

x = [ 1 4 2 8];
newX = [ x, 9 ]
newX =
     1     4     2     8     9

[steve Brian]

Let's say we have a matrix of MxN, I insert the elements of the matrix into a vector, then I want the last element to be n + 1

V = [ 12 21 10;

7 2 1;

8 5 21; ]

NewV = [ 12 21 10 7 2 1 8 5 21 "22"]

I have already the newV, but i want to add that n+1 element

[per isakson]

I'm even more confused

"I have already the newV, but i want to add that n+1 element"

Isn't that exactly what's done by

NewV(end+1) = 22; 

[steve Brian]

Sorry I am not precise .. I want to be an algorithm that takes each element of the vector and when it has reached the end, to add them ( without specifying it) the last element + 1

Something like:

V = [ x1 x2 x3 ...... xN]

Let's say p is the algorithm or function. P will check each element in the vector, and when it reaches its tail, the end of the vector, add +1 to the last element

new V = [ x1 x2 x3 .... xN x(N+1) ]

p = x1 (first element)

p = x1 x2 (second elem)

p = x1 x2 x3 ( third el)

p = x1 x2 x3 .. xN ( oh, the N element is the tail, i need to put the last element to this tail, N +1, to be like N N +1)

finally: new V = [ x1 x2 x3 .... xN x(N+1) ]