- Define function w/
Number Menu, New Function.
Use the variable x.
- Measure and name measurements w/
Measure Menu, Abscissa, then Ordinate.
You'll need the abscissa, the x-value.
- Evaluate the function at x1 w/
Number Menu, New Calculation, THEN a click on the function, THEN placement of the measurement, the x1, in the appropriate place.