# form a row vector

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Ace_ventura
on 9 Mar 2015

Commented: Stephen23
on 9 Mar 2015

I have to form a row vector x=[5 6 16 17 27 28 38 39....] till the total number of elements become 'n' where 'n' is entered by the user. Say, I enter n=4 so my x=[5 6 16 17]

basically what I want is that if I have two numbers say, X and Y and I wish to give some increment to these numbers to form a row matrix containing 'n' elements. Say, increment is 3 and n is 6 A=[X Y X+3 Y+3 X+6 Y+6]

### Accepted Answer

Michael Haderlein
on 9 Mar 2015

First, get all the X+... and Y+... separately and get them into the correct order then (Activate the commented % to stop the output as it's only for educational reasons here):

>> inc=11;X=5;Y=6;

>> N=3;

>> Z=[X+(0:N-1)*inc;Y+(0:N-1)*inc] %; %first row: X+..., second row: Y+...

Z =

5 16 27

6 17 28

>> Z(:)'

ans =

5 6 16 17 27 28

##### 2 Comments

Stephen23
on 9 Mar 2015

To get the output to be length N, as the original question requested, try this:

>> inc = 11;

>> X = 5;

>> Y = 6;

>> N = 3;

>> Z = inc*(0:N/2);

>> Z = [X+Z; Y+Z];

>> Z = Z(1:N);

### More Answers (1)

Chandrasekhar
on 9 Mar 2015

x = [5 6 16 17 27 28 38 39....]

n = input('enter the total number of elements');

x = x[1:n];

disp(x);

##### 4 Comments

Jan
on 9 Mar 2015

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