create a column vector 𝑡 containing the values in the first column of the loaded data and a column vector 𝑥 containing with the values in the second column of the loaded data file in matlab

Assuming that the loaded data is stored in a matrix data, we can obtain the first column and second column as column vectors t and x respectively using the following code:

main.m
t = data(:,1); % extract the first column as a column vector
x = data(:,2); % extract the second column as a column vector
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Here, : operator is used to select all rows, and 1 and 2 are the column indices indicating the first and second columns of the matrix data.

Note: If the loaded data file data.csv is a comma-separated file, we can use the following code to load the data:

main.m
data = csvread('data.csv');
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This assumes that the file data.csv is in the current working directory of MATLAB. If the file is located in a different directory, we need to provide the full path to the file.