using fprintf for answers

Trying to get my answer to look like the table below

these are my results it is a little off and answers are also in exponential form trying to change that too

fprintf('\r\r%s\n',        ' CP 2 - STRAIN TRANSFORMATION FOR UNIFORM MOTION')
fprintf('\r\r%s\n',  'Material Properties        ')
fprintf('%s%8.3f\n', 'Youngs Modulus' ,YM )
fprintf('%s%8.3f\n', 'Poissons Ratio' ,v )

fprintf('\r\r%s\n',  'Deformation Gradient')
fprintf('%s%8.3f\n', ' ---------F------- ' ,F) 

fprintf('\r\r%s\n',  'Strain Tensor\n')
fprintf('%s%8.3f\n', '-------E------',E) 

fprintf('\r\r%s\n',  'Principal Strains')
fprintf('%s%s%8.3f\n', ' e1 ',E1)
fprintf('%s%s%8.3f\n', ' e2 ',E2)

fprintf('\r\r%s\n',  'Principal Stress')
fprintf('%s%s%8.3f\n', 's1 ',S1)
fprintf('%s%s%8.3f\n', ' e2 ',S2,'\')

My results are

Answer 1

[Walter Roberson]

fprintf('%s%8.3f\n', '-------E------',E) 

Your E is a vector with at least 4 values. If we assume that E has 4 values, then your code is equivalent to

fprintf('%s%8.3f\n%s%8.3f\n%s', '-------E------',E(1), E(2), E(3), E(4)) 

which will try to display E(2) with a %s format.

More likely to be correct would be

fprintf('%s\n', '-------- E --------');
fprintf('%8.3f %8.3f\n', E.');    %notice the transpose

Without the transpose, the first line would display E(1) and E(2) and the second would display E(3) and E(4) -- but those are E(1,1), E(2,1), E(1,2), E(2,2) so values "down" the columns would be displayed across.

Answer 2

[per isakson]

This supplements Walter's answer.

Replace

fprintf('\r\r%s\n',  'Strain Tensor\n')

by

fprintf('\r\r%s\n',  'Strain Tensor')

and replace

fprintf('%s%s%8.3f\n', ' e1 ',E1)
fprintf('%s%s%8.3f\n', ' e2 ',E2)

by

fprintf('%s= %11.6f      ', ' e1 ', E1 );
fprintf('%s= %11.6f\n', ' e2 ', E2 );

and replace

fprintf('%s%s%8.3f\n', 's1 ',S1)
fprintf('%s%s%8.3f\n', ' e2 ',S2,'\')

by

fprintf('%s= %11.6f      ', ' s1 ', S1 );
fprintf('%s= %11.6f\n', ' s2 ', S2 );

Adjust the number of spaces as needed.

Add the "Stress Tensor" group.