I need read values of a txt file with MATLAB, the file is here:
-0.933475 0.358642
-1 6.12323e-17
but I have some troubles with this value 6.12323e-17
, in matlab when I read it, the vale is 0.0000
here is the MATLAB code:
close all; clear;
arquivo = fopen('fftOut.txt');
formatSpec = '%f %f';
sizeA = [2 inf];
X = fscanf(arquivo,formatSpec, sizeA);
X'
fclose(arquivo);
and the output is
-0.9335 0.3586
-1.0000 0.0000
How can I handle it 0.0000
?
Thanks in advance
You are using %f which is fixed point. Use %e for exponential notation. Check out mathwork's web site: http://www.mathworks.com/help/matlab/matlab_prog/formatting-strings.html?refresh=true
It's not 0, when matlab prints a matrix, it uses the same notation for all elements, so the printed value is truncated but the stored one isn't.
Try printing just the imaginary part of the second number.
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