content_image/368355.jpg content_image/368358.jpg
<img src='content_image/368355.jpg'>

<img src='content_image/368358.jpg'>

at K that gives the maximum value of y . The fitted straight line gives the limit 0 . 1333, very close to 2 / 15. What about the values of y and z ? Indeed they converge beautifully as figure 9 indicates. The limit for y is about 1 . 010 and z approaches a value of − 3 . 537. 

