This work presents an exact and compact formula for the probability of rotation-xor differentials (RX-differentials) through modular addition. for arbitrary rotation amounts. which has been a long-standing open problem. The formula comes with a rigorous proof and is also verified by extensive experiments. https://www.bekindtopets.com/top-sale-Blue-butter-silk-saree-with-zari-buttas-contrast-zari-floral-design-border-intricately-decorated-pallu-flash-find/