Re: fprintf, %e

[Tom Holroyd (NIH/NIMH) [E]]

The problem is with the underlying C library's conversion function, not Octave.
But you can do this (for positive exponents only):

        x = 1.2345678910e+002;
        ex = floor(log(x)/log(10));
        y = x / 10**ex;
        fprintf('%10.10f+%03d\n', y, ex)
        => 1.2345678910+002

Jakub Selesovsky wrote:
> Hello,
>
> I have a little problem with the fprintf function. For another processing  
> I need to have the results from octave in this form:
>
> 1.2345678910e+002
>
> I am able to control the precision and the width of the column via  
> '%17.10e' but I don't know how to control the number of digits behind  
> letter 'e'. I am always getting the output with two digits (e+02) in  
> exponent, but I have to get three digits (e+002).
>
> Than you for any help.
> Jakub

--
Tom Holroyd, Ph.D.
We experience the world not as it is, but as we expect it to be.