HP Prime Graphing NW280AAABA manual Summary of FCN operations, Named Extremum, Slope

Summary of FCN operations

Operation	Description
Root	Select Root to find the root of the
	current function nearest to the tracing
	cursor. If no root is found, but only an
	extremum, then the result is labeled
	Extremum instead of Root. The cursor
	is moved to the root value on the x-axis
	and the resulting x-value is saved in a
	variable named Root.
Extremum	Select Extremum to find the maximum
	or minimum of the current function
	nearest to the tracing cursor. The cursor
	moves to the extremum and the
	coordinate values are displayed. The
	resulting x-value is saved in a variable
	named Extremum.
Slope	Select Slope to find the numeric
	derivative of the current function at the
	current position of the tracing cursor. The
	result is saved in a variable named
	Slope.
Signed area	Select Signed area to find the
	numeric integral. (If there are two or
	more expressions checkmarked, then
	you will be asked to choose the second
	expression from a list that includes the x-
	axis.) Select a starting point and an
	ending point. The result is saved in a
	variable named SignedArea.
Intersec-	Select Intersection to find the
tion	intersection of the graph you are
	currently tracing and another graph.
	You need to have at least two selected
	expressions in Symbolic view. Finds the
	intersection closest to the tracing cursor.
	Displays the coordinate values and
	moves the cursor to the intersection. The
	resulting x-value is saved in a variable
	named Isect.

124 Function app