how to read constant information from txt file in matlab

To read constant information from a TXT file in MATLAB, you can use the fscanf function. Here's an example of how to do it:

main.m
% Open the file for reading
fid = fopen('constant.txt', 'r');

% Read the constant value
constant = fscanf(fid, '%f');

% Close the file
fclose(fid);

% Display the constant value
disp(constant);
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In this example, we assume that the TXT file named 'constant.txt' contains a single constant value in decimal format. The fscanf function reads the value from the file and stores it in the constant variable. Finally, the disp function is used to display the constant value.

Make sure to provide the correct file name and path if the TXT file is not in the current working directory.