I have just added the code <?php if ( has_post_thumbnail() ) the_post_thumbnail (array(786,400));?>
to my post php file to have the post thumbnail shown on it, and I have used (array) in my code to specify my image size without referring to functions.php file .... BUT the thing is that the size of the shown image is (533 x 400) pixels !!
is there some kind of ratio that the (array) has to have or what can I do to have the same size that I have specified??
Regards