note 26423 added to function.hypot

This function could be used to get the size of a vector. Suppose you have 2 coordinates: (x1, y1) and (x2, y2) (2,2) and (5,6) The scalar value of the vector is: hypot (y2-y1, x2-x1) hypot (6-2, 5-2) Use the trigonometrical functions to get the angle: atan ((y2-y1)/(x2-x1)) // radians rad2deg (atan ((y2-y1)/(x2-x1))) // degrees =) -- http://www.php.net/manual/en/function.hypot.php http://master.php.net/manage/user-notes.php?action=edit+26423 http://master.php.net/manage/user-notes.php?action=delete+26423 http://master.php.net/manage/user-notes.php?action=reject+26423