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124 Function app
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-
tion
Select Intersection to find the
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.