Hi what I want to do is simple: to exchange the value stored in ANS memory to a different one. Like this: I do some calculation and hit the equation mark. Now the value is stored in ANS memory. Now I do another calculation and the new value is stored in ANS memory. Now I navigate to the previous calculation and want to store it in ANS memory. How do I do it? (if I hit the equation mark again, it would do some other calculation (what is it?)). And if I can't store it in the fastest ANS memory, what other options do I have?