MATLAB: Matlab single quote problem

Question

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

Answer 1

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))];