ZENO-5000 SCIENTIFIC CALCULATOR IS A PORTABLE MULTIPURPOSE SCIENTIFIC CALCULATOR. ZENO-5000 SCIENTIFIC CALCULATOR HAS DOUBLE SCREENS FOR COMPLEX AND DYNAMIC CALCULATIONS AND COMPUTATIONS. WITH ITS EASY ON THE EYE APPEARANCE ZENO-5000 SCIENTIFIC CALCULATOR IS AIMED AT GIVING YOU A UNIQUE USER FEEL AND EXPERIENCE. ITS JUST LESS THAN 1.5MB AND IT PERFORMS SOME AWESOME FUNCTIONS. ZENO-5000 SCIENTIFIC CALCULATOR HAS A COLLAPSIBLE LAYOUT TO GIVE YOU MORE CONTROL AND MANIPULATIONS. ZENO5000 SCIENTIFIC CALCULATOR PERFORMS MORE THAN 39 FUNCTIONS