array concatenation problem in matlab

Question

Samriddhi Kumari 2021-6-27

评论： Shivani Dixit 2021-7-7

How can I add up on array without using concatenation or inbuilt function in matlab? I just want to combine the values in array.

Answer 1

Shivani Dixit 2021-6-27

Assuming any inbuilt function should not be used, you can add up one array to other by the following method :

% assume this to be your initial array 
x=[1 2 3]
% now suppose a new value is to be added i.e 4
x=[x 4]

This method concatenates values to the array without using any inbuilt function in matlab.

Stephen23 2021-6-27

编辑：Stephen23 2021-6-27

"Assuming any inbuilt function should not be used,"

Note that square brackets are just syntactic sugar for HORZCAT and VERTCAT, both of which are inbuilt functions:

which vertcat
built-in (/MATLAB/toolbox/matlab/ops/vertcat)
which horzcat
built-in (/MATLAB/toolbox/matlab/ops/horzcat)

Shivani Dixit 2021-7-7

A good catch , but as per the query , i assume that in this context, built-in means not to use any ready-made functions that concatenates the array.