Matlab sprintf formatting

Question

EDIT: I\'ve reworded the question to be clearer.

Does anyone know a clever way to get sprintf to print \"%.6f with trailing zeros elminated\"? This is

Answer 1

EDIT: Updated to address the edited question...

I don't think there's any way to do it with a particular format string for SPRINTF, but you could instead try this non-loop approach using the functions NUM2STR and REGEXPREP:

>> mat = [12345678 123.45 123.456789012345];       %# Sample data
>> str = num2str(mat,'%.6f');             %# Create the string
>> str = regexprep(str,{'\.?0+<','\s'},{'<',''});  %# Remove trailing zeroes
                                                   %#   and whitespace
>> fprintf(str);                                   %# Output the string

12345678123.45123.456789  %# Output