So that you can change the output format by issuing
format STYLE
in your case
format shortE
you probably knew. And it won't help you here. The only idea I have is converting to string and doing some regular expression magic. So if iL is your symbolic expression. Then this command will get you a string res_str that contains the symbolic expression with all numbers (with decimals) converted to scientific notation
iL = 0.00467 - 0.0002202*exp(-133.2*t)*sin(2825.0*t)-.00467*exp(-133.2*t)*cos(2825.0*t)
res_str = regexprep(char(vpa(iL)),'([0-9]+\.[0-9]+)','${num2str(str2num($1),''%e'')}')
%res_str =
%4.670000e-03 - 2.202000e-04*exp(-1.332000e+02*t)*sin(2.825000e+03*t)-
%4.670000e-03*exp(-1.332000e+02*t)*cos(2.825000e+03*t)
(The extra vpa() command in regexprep is obviously unnecessary here if you called it on your expression earlier already)
Now if you reconvert to a sym, the numbers will be represented in the normal decimal format again, but that shouldn't be a problem: If you want to do algebra with it, use the sym variable, if you want to display use the string form.
