The whiteboard full of mathematical equations in Rob Mouchou's office might not test the mettle of Isaac Newton, but figuring out how to tweak and fully integrate a new server-based software application by Bally Technologies took its toll on the management team at Eldorado Hotel Casino.On the other hand, play is up 40 percent with the new software. Eldorado is field-testing Bally's Elite Bonusing Suite, a floor-wide system that offers players several different bonus games within standard games such as slots or poker. The system was deployed in early April on more than 50 machines on the Eldorado casino floor …