I'm wanting to change my formatting to scientific and output values in a table

An inches-to-angstroms conversion table for values of inches 1-15

%One inch is 254000000 angstroms 
%Defined a vector of inch values
    Inches=1:15; 
%converts inches to angstroms
    Angstroms=Inches.*254000000; 
    table=[Inches,Angstroms];
%Creates table title 
    disp('Inch to Angstrom Conversion Table')
% Creates colum headings 
    disp(' Inches     Angstrom')
%Display the table    
    fprintf('%4.0f %7.2f \n',table) 

This is what is outputed currently

Inch to Angstrom Conversion Table
 Inches     Angstrom
   1    2.00 
   3    4.00 
   5    6.00 
   7    8.00 
   9   10.00 
  11   12.00 
  13   14.00 
  15 254000000.00 
508000000 762000000.00 
1016000000 1270000000.00 
1524000000 1778000000.00 
2032000000 2286000000.00 
2540000000 2794000000.00 
3048000000 3302000000.00 
3556000000 3810000000.00 

I'm wanting to represent my result in scientific notation, showing two values after the decimal point meaning three significant figures.

Answer 1

[dpb]

Your table isn't what you think it is...study the output carefully and the orientation of the data in the table...

HINT: You need two rows to print as you've done above irrespective of the format and get the output in the right order; or, to make a table that you can look at as you expect in the Matlab command window you'll want to columns. If you do that, then to print in the same displayed orientation/order you'll need to transpose the array because Matlab stores data in column-major order and fprintf outputs it in memory-storage order.

For the specific Q?

fmt=['%5d %10.2E\n'];
fprintf(fmt,table.')

>> fprintf(fmt,table.')
   1 2.54E+08
   2 5.08E+08
   3 7.62E+08
   4 1.02E+09
   5 1.27E+09
   6 1.52E+09
   7 1.78E+09
   8 2.03E+09
   9 2.29E+09
  10 2.54E+09
  11 2.79E+09
  12 3.05E+09
  13 3.30E+09
  14 3.56E+09
  15 3.81E+09
>>

after I took care of the other memory problem...