To calculate the coordinates of a point of intersection of two functions, display the calculations for functions menu then press to select 2.Intsct.
(Or, type .) Press a second time to select 3.Minimum which finds a relative minimum.
Press a third time to select 4.Maximum which finds a relative maximum.
Press a forth time to select 5.x_Incpt which finds an x intercept.
Press a fifth time to select 6.y_Incpt which finds the y intercept.
Press a sixth time to select 6.Inflec which finds a point of inflection.