Selectively setting significant digits in display

Question

ANUBHAV SINHA 2011-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/884-selectively-setting-significant-digits-in-display

Hi, My program outputs a 2-column array of numbers. I wish to display the first column numbers with the precision of 2 decimal places. However, I want the second column to be displayed with a 9 decimal precision. May someone please suggest the way to do this?

Thanks.

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Answer 1

Jiro Doke 2011-2-5

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https://ww2.mathworks.cn/matlabcentral/answers/884-selectively-setting-significant-digits-in-display#answer_1265

在 MATLAB Online 中打开

Make use of fprintf.

Here's a short example:

% Create 2-column array of random numbers (0 - 1)
num = rand(10, 2);
% Make some values greater than 10 or 100
num(10) = num(10)+10;
num(15) = num(15)+100;
% Display with specified number of digits
%   Note: transpose "num".
fprintf('%6.2f  %13.9f\n', num');

This displays:

91    0.494173937
80    0.779051723
10    0.715037078
26    0.903720561
34  100.890922504
68    0.334163053
14    0.698745832
72    0.197809827
11    0.030540946
65    0.744074260