the number to test against
Optional
__: numberan optional epsilon
Optional
epsilon: number = EPSILONan optional epsilon
is the point collinear to the line, and in the case of ray/segment, does the point lie within the bounds of the ray/segment?
check if a point lies collinear along a line, and specify if the line is a line/ray/segment and test whether the point lies within endpoint(s).
[lineDomain=includeL] the domain of the line
one 2D point