# Adding elements in column vectors

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David Jones il 10 Giu 2021
Commentato: Scott MacKenzie il 10 Giu 2021
Hi
I have 2 colimn vectors a = 1:500 and b= 1:6000 I would like to make a new column vector c with (a first) and (b second) so the new column vector would bw c = 1:6500.
Any help would be greatly appreciated
Thank you
David
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Scott MacKenzie il 10 Giu 2021
Modificato: Scott MacKenzie il 10 Giu 2021
You want to concatenate the vectors a and b. This is one of the most basic operations in MATLAB. All the details are here.

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### Risposta accettata

Max Heiken il 10 Giu 2021
Hello,
you can concatenate vectors and matrices vertically with a semicolon like this
c = [a; b];
or concatenate them horizontally with a comma like this
c = [a, b];
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Scott MacKenzie il 10 Giu 2021
Yes indeed, but horizontal concatenation won't work in this case because a is 1x500 and b is1x6000 and both are column vectors.

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### Più risposte (1)

KSSV il 10 Giu 2021
MAke a and b of equal dimension using linspace. and then add.
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