TODO thing

TODO.md

@@ -1,18 +1,20 @@
 ## TODO:
 1. Function management
-	- Integrals between functions (too hard to implement, maybe will shelve)
-	- Display intersection between functions (would have to rewrite a lot of the function plotting handling)
-	- [Drag and drop support](https://github.com/emilk/egui/discussions/1530) in the UI to re-order functions
-	- Hide/disable functions
-	- Prevent user from making too many function entries
-	- Display function errors as tooltips or a warning box (not preventing the display of the graph)
-	- Clone functions
+	a. Integrals between functions (too hard to implement, maybe will shelve)
+	b. Display intersection between functions (would have to rewrite a lot of the function plotting handling)
+	c. [Drag and drop support](https://github.com/emilk/egui/discussions/1530) in the UI to re-order functions
+	d. Hide/disable functions
+	e. Prevent user from making too many function entries
+	f. Display function errors as tooltips or a warning box (not preventing the display of the graph)
+	g. Clone functions
 2. Smart display of graph
 	- Display of intersections between functions
 3. Allow constants in min/max integral input (like pi or euler's number)
 4. Sliding values for functions (like a user-interactable slider that adjusts a variable in the function, like desmos)
 5. Fix integral display
 6. Better handling of roots and extrema finding
+	a. For instance, persistance, the roots shouldn't be recalculated for each movement of the viewport
+	b. If applicable, the roots/extrema should be expressed in terms of constants such as a root of a number, pi, or something else.
 7. Add closing animation for function entry
 8. Fix mobile text input
 9. Write custom plotter