ElementaryDifferentialGeometrypresentsthemainresultsinthedifferentialgeometryofcurvesandsurfacessuitableforafirstcourseonthesubject.Prerequisitesarekepttoanabsoluteminimum–nothingbeyondfirstcoursesinlinearalgebraandmultivariablecalculus–andthemostdirectandstraightforwardapproachisuse