Function Grapher and Visual Calculus have the ability of calculating and graphing the points of intersection
and the area of intersectant field.
The following figure shows the relationship between two 2D curves.
The calculating results are shown in Result Editor
Function y=sin(x)
Function2 y=cos(x)
Point of intersection: x=-5.497795,y=.703576
Point of intersection: x=-2.356066,y=-.7046865
Point of intersection: x=.7853208,y=.7061476
Point of intersection: x=3.926907,y=-.7038306
Area of intersectant field is 6.070831
Math Software -> Graph Function (Graph Calculus) -> Point Of Intersection
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