How can I properly format small numbers using num2str?
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Noam Ouzana
il 17 Ago 2021
Commentato: Walter Roberson
il 18 Ago 2021
I was assigned to work on the aesthetics of a table that shows collected data as string.
I want to show the numbers with 4 digits percision, but whenever the number is bigger the 10e-5, the output will include all the zeros, and only the four digits, e.g:
x=0.000123456;
y=0.0000123456;
solx=num2str(x,'%.4G');
soly=num2str(y,'%.4G');
solx
soly
Is there any way that I can get solx to be formatted like soly?
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David Hill
il 17 Ago 2021
soly=num2str(y,'%.3E')
solx=num2str(x,'%.3E')
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Simon Chan
il 18 Ago 2021
Write a function which can change the display format based on the magnitude of the data.
Walter Roberson
il 18 Ago 2021
Simon is correct.
The only conditional formatting that MATLAB supplies in any released version, is what is done automatically by "format short" or "format long", or done by a %g format for sprintf() or fprintf() or compose() -- none of which permit tuning the boundaries of when values are to be shown in which varient.
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