matlab single quote problem
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how should I output this sentence in single quote instead of double quote? Because change the double quote to single quote directly is not work 
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Brent Kostich
2020-5-28
You need to use brackets when creating a multi-part sentence like that, which is equal to horzcat. Also, you need to use character segments, not strings.
pi = ['The approximation on ', num2str(n), ' terms is ', num2str(round(pi*4, 4))];
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