Formatting of result values.
3 views (last 30 days)
Show older comments
For example, x=0.0012345678.
How can I get x to be in the format 0.123457*10^(-2). There are six significant digits and if more than six decimal places, which are converted to standard format by rounding.
Thank you!
0 Comments
Accepted Answer
Star Strider
on 18 Sep 2022
That is not a format MATLAB will do automatically.
I wrote a utility function for my own use for such requirements —
x=0.0012345678;
lod = 1;
rfd = @(x,lod) [x*(10.^(-fix(log10(x)-lod+1))), fix(log10(x)-lod+1)]; % Anonymous Function Creating Reformatted Number
Out = sprintf('%.6fE%+d', rfd(x,lod)) % Character Vector With Formatted Output
Experiment with it if necessary. MATLAB maintains full precision internally regardless of the way the numbers are formatted.
.
0 Comments
More Answers (1)
John D'Errico
on 18 Sep 2022
You cannot write it in that form, at least not easily. Yes, you could write a formatting code. But you would need to write it, separating out the exponent, then building it as a string.
You CAN use an exponential format, like this:
format short e
x=0.0012345678
But if you want that specific 10^-2 form, that will take more work.
0 Comments
See Also
Categories
Find more on Characters and Strings 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!