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fprintf function question about

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THANH NGUYEN
THANH NGUYEN 2013 年 2 月 19 日
閉鎖済み: MATLAB Answer Bot 2021 年 8 月 20 日
fprintf('that will be $ %5.2f ....)
I know .2 mean 2 decimal place, but what is 5 mean here. Thanks.

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Image Analyst
Image Analyst 2013 年 2 月 19 日
It means that the field width will be padded so that it will be at least 5 characters, like "12.34" or " 1.23" - Note the last case has a space added. You don't need to use the first number - I never do. Just use '%.2f' and you'll be fine. You only need to use it if you want to print a bunch of things with different sizes and want them to be all aligned. But normally you don't use it.

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