Locking Calculated points on a graph

[froehlic]

You may store the values of X and Y in other variables. While plot is open and the cursor is in a specific position on your graph (intersection, root or whatever) you directly type

X Sto A
or

Y Sto B

These values can wherever be reused, e.g. as the beginning of an integration. If you start graphical integration and you have to type the lower end, simply type A. You also can use the variables in home or CAS for other calculations. But: You can't store [X Y] directly in functions into another variable. For that you have to go to home or CAS and after storing you may call your plot again and jump to a second position and repeat that action.