AreaToolsAreaSignedAboveXaxis Method

Calculates the area between the x-axis and the line defined by the (x1,y1) and (x2,y2) coordinates, where the line is above the x-axis. Where the line is below the x-axis, the area is not considered.

It is calculated with signed such that if x2 > x1 then the area is negative.

public static double AreaSignedAboveXaxis(
	double x1,
	double y1,
	double x2,
	double y2
)