Returns a new ChordAngle that has been adjusted by the given error bound (which can be positive or negative).
Error should be the value returned by either MaxPointError or MaxAngleError. For example:
let a = fromPoints(x, y)
let a1 = a.expanded(a.maxPointError())
Returns a new ChordAngle that has been adjusted by the given error bound (which can be positive or negative). Error should be the value returned by either MaxPointError or MaxAngleError. For example:
let a = fromPoints(x, y) let a1 = a.expanded(a.maxPointError())