How can I use fprintf to print matrix by column?

This is my code:

x = [1:0.6:4];

k = str2double (input ('Enter a value k: ','s'));

y = [x',(x.*k)',(x.^3)'];

disp ('The values of y are the following:');

y2 = [x.*k]';

y3 = [x.^3]';

fprintf ('%.4f %.4f %.0f\n',[x';y2;y3]);

I need to print the matrix y on the screen like this :

The values of y are the following:

1.0000 2.0000 1

1.6000 3.2000 4

2.2000 4.4000 11

2.8000 5.6000 22

3.4000 6.8000 39

4.0000 8.0000 64

But it keeps printed like this:

The values of y are the following:

1.0000 1.6000 2

2.8000 3.4000 4

2.0000 3.2000 4

5.6000 6.8000 8

1.0000 4.0960 11

21.9520 39.3040 64

Can someone help me with this? Thank you very much!

[Stephen23]

Removing all of the superfluous and confusing square brackets and complex conjugate tranposes makes your code simpler:

x = 1:0.6:4;
k = pi;
y = [x; x.*k; x.^3];
fprintf('%.4f  %.4f  %.0f\n',y);

1.0000  3.1416  1
1.6000  5.0265  4
2.2000  6.9115  11
2.8000  8.7965  22
3.4000  10.6814  39
4.0000  12.5664  64

If you want to write better code the solution is to get rid of pointless tranposes and the like, not keep on adding more on top.

Answer 1

[Image Analyst]

Use commas instead of semicolons:

x = [1:0.6:4]
k = str2double (input ('Enter a value k: ','s'));
y = [x',(x.*k)',(x.^3)']
disp ('The values of y are the following:');
y2 = [x.*k]'
y3 = [x.^3]'
fprintf ('%7.4f  %7.4f  %7.0f\n',[x',y2,y3]');

[Niel Tran]

Thank you for your answer but it still prints to the screen the same.

[Image Analyst]

I forgot to transpose it in the fprintf(). Try this:

x = [1:0.6:4]
k = str2double (input ('Enter a value k: ','s'));
% y = [x',(x.*k)',(x.^3)']
disp ('The values of y are the following:');
y2 = [x.*k]'
y3 = [x.^3]'
fprintf ('%7.4f  %7.4f  %7.0f\n',[x',y2,y3]');

Enter 2 and you'll see:

1.0000 2.0000 1

1.6000 3.2000 4

2.2000 4.4000 11

2.8000 5.6000 22

3.4000 6.8000 39

4.0000 8.0000 64

>>

[Niel Tran]

thank you very much!

Answer 2

[Rik]

fprintf tranverses the input in a column-major order. If you want to change that, you can't, so you will have to flip the array itself:

x = [1:0.6:4];
k=2;%k = str2double (input ('Enter a value k: ','s'));
y = [x',(x.*k)',(x.^3)']

y = 6×3

1.0000 2.0000 1.0000 1.6000 3.2000 4.0960 2.2000 4.4000 10.6480 2.8000 5.6000 21.9520 3.4000 6.8000 39.3040 4.0000 8.0000 64.0000

%fprintf ('%7.4f  %7.4f  %7.0f\n',y.');
%                                  ^^
fprintf ('%7.4f  %7.4f  %7.0f\n',y.');

 1.0000   2.0000        1
 1.6000   3.2000        4
 2.2000   4.4000       11
 2.8000   5.6000       22
 3.4000   6.8000       39
 4.0000   8.0000       64

[Niel Tran]

Thank you very much!