Using fprintf, how to print 1.234D+02 instead of 1.234E+02?
1 view (last 30 days)
Show older comments
I'd like to print scientific notations into a file, in the format of FORTRAN. For example, I want to print 1.234D+02 instead of 1.234E+02 into the file. How to realize it? Thank you all~
2 Comments
Stephen23
on 5 Jan 2017
fprintf only supports e or E.
You will have to either replace the characters after writing the file, or use sprintf and replace the characters before writing the file.
Accepted Answer
José-Luis
on 5 Jan 2017
Edited: José-Luis
on 5 Jan 2017
EDIT
As said before, Stephen's answer is the way to go and I had previously posted an erroneous answer. Second try:
mag = @(x) floor(log10(abs(x)));
val = @(x) x./10.^mag(x);
x = [-25, -0.0001, 0, 0.00025, 1.005, 15, 12345];
leftVal = val(x);
leftVal(isnan(leftVal)) = 0;
rightVal = mag(x);
rightVal(rightVal == -Inf | rightVal == Inf) = 0;
sprintf('%.3fD%+03d\n',[leftVal;rightVal])
4 Comments
Walter Roberson
on 6 Jan 2017
Edited: Walter Roberson
on 6 Jan 2017
S = sprintf('%.3e',YourNumber)
S(S=='e') = 'D' ;
More Answers (0)
See Also
Categories
Find more on Software Development Tools in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!