Creating tables from a program?

Ok the question was, Write the MATLAB statements required to calculate and print out the squares of all even integers from from 0 to 50. Create a table consisting of each integer and its square, with the appropriate labels over each column(right alligned.

In other words:

Integer   Square

=======   ======

      0        0
      2        4
      .        .
      .        .
     50     2500

Here's my program:

cnt = 0;

for z = 0:2:50

    cnt = cnt + 1;
     x(cnt)=z^2;
     fprintf('the interger %g has a square value of %g\n', z,x(cnt))
end

The fprintf was just so see if the program worked.

Thanks!

[Jan]

Do you have a question?

[Isaias Santiago]

x = -2;

y = 0;

maxy = 2304;

limity = 2305;

fprintf ('integer square \n')

fprintf ('------- ------ \n')

while (maxy < limity)

    x = x + 2;
    y = x^2;
    ynew = y;
    maxy = ynew;
    fprintf ('%3i           %3i\n', x, ynew)
end

Answer 1

[Matt Fig]

Only using FPRINTF:

z = (0:2:50);
fprintf('\n\n%s   %s\n%s   %s\n','Integer','Square','=======','======')
fprintf( '\t%3.f\t\t%4.f\n', [z;z.^2])

[Jan]

Let me mention the "squares of all *even* integers from from 0 to 50" again.

[Matt Fig]

Thank you Jan!

Answer 2

[Sean de Wolski]

You could also do:

 z = (0:50).';
 fprintf('         Integer, Integer^2\n-------------------\n');
 disp([z,z.^2]);

[Matt Tearle]

bonus points for the vectorization!

you could also control the display of the values using fprintf (again one vectorized line of code)

[Sean de Wolski]

I tried but couldn't get it to have the heading only once in a one liner?

[Walter Roberson]

Sean,

fprintf('Header\n%s', sprintf('%f %f\n', [z,z.^2].'))

[Oleg Komarov]

That's a trick...