You'll need to import the CSV file. You can see this answer for more information: https://www.mathworks.com/matlabcentral/answers/72545-how-to-import-csv-file-in-matlab#answer_238222
Once you have the CSV file as a table you can use a for loop (simple solution) likeso:
%% Make example table
Location = {'New York'; 'Norfolk'; 'Cape St. Vincent'};
Latitude = [43.00; 37; 37];
Longitude = [-75; -76; -9];
example_table = table(Location, Latitude, Longitude);
%% Iterate through using arclength
for i = 1:height(example_table)
city_loc = [example_table.Latitude(i), example_table.Longitude(i)];
arclen(i) = distance('gc', [23.33, 122.2], city_loc);
end
arclen
Note that arclen is not a function, it's just an arbitrary name for a variable. Your teacher (or whoever gave you this problem) could have named it anything. The function is the distance function with the greatcircle parameter called. You can see more about the function here: https://www.mathworks.com/help/comm/ref/txsite.distance.html
