SPI slave doesn't work when I follow the spec, does when I don't?

it helps some times I have tried to run this matlab code : , May be you can implement this equation and it will work for you:

>> (1 + exp(-2*900))/(2*exp(-900))

ans =

   Inf

>> (1 + exp(-2*700))/(2*exp(-700))

ans =

  5.0712e+303

wish of those help I'm guessing turbolinks is the culprit here. Added to Rails to help speed up page load times, it messes up some jQuery things because it prevents the browser from recompiling the JS each time you visit a page.
Basically, the jQuery(document).ready(function() {...}); section of your tabs code isn't being run when you revisit a page you've already been to. Rails already ran the javascript the first time, so to speed things up, it didn't do it the second time. Unfortunately for you, you needed the javascript again!

$(document).on('page:load', function() {
    // tab code goes here
});

$( document ).ready(function() {
  tabs_init();
});

$( document ).on('page:load', function() {
  tabs_init();
});

function tabs_init() {
  jQuery('.tabs .tab-links a').on('click', function(e) {
    var currentAttrValue = jQuery(this).attr('href'); // Show/Hide Tabs
    jQuery('.tabs ' + currentAttrValue).fadeIn(400).siblings().hide(); // Change/remove current tab to active
    jQuery(this).parent('li').addClass('active').siblings().removeClass('active'); 
    e.preventDefault();
  });
}

To fix this issue Your problem is caused because you are using the same board instance for checking the rules and for updating. Every iteration you should create a new board based off the old one instead of re-using the old board.
You should maintain two boards at any given time. One to read from and one to write to then just copy the written one at the end of each iteration

Hope this helps You should collect the text you wish to display into a StringBuilder and then display it:

String line = null;
StringBuilder sb = new StringBuilder();
while((line = br.readLine()) != null) {
    sb.append(line);
    sb.append("\n");
}
textArea1.setText(sb.toString());