Ok cool , let me know dude <| sep |> Found the that guy guy . <| sep |> A bs tier 2 , I ' d say 5 keys more than market is MAX that anyone MIGHT pay . Don ' t quote me on it . <| sep |> I wanted a 21 so bad but they were both so expensive at the time and were a bitch to move . <| sep |> TAKE NOTE WASHINGTON , DALLAS RUNS THE NFC EAST <| sep |> Hey Eagles <| sep |> I ' m not sure precisely what you mean by contemporary or geometric algebra or basic number elements and algebra . What did you feel was missing from Lang ' s book ? I ' m not familiar with its contents . If you want something in line with the standard high school curriculum , but maybe a bit more rigorous than most , this book by Kiselev was the standard Russian school text for generations theknot . o r g b o o ksReviewsKiselevsGeometry . shtmlOr you could try the Art of Problem Solving geometry book geometry . There ' s a lot of good stuff in Coxeter and Greitzer ' s book Geometry Revisited , but I ' d say it probably assumes a standard high school geometry course as a prerequisite . Not really limited to plane geometry , but I really like Hilbert and CohnVossen ' s book Geometry and the Imagination r e v i e w s geometryandtheimagination . I ' d recommend getting a used copy of the original printing the recent ones are printed on demand and not as nice . Also let me recommend Apostol and Mamikon ' s lovely book New Horizons in Geometry r e v iewsnewhorizonsingeometry , though it ' s more about calculus than algebra per se . If you want to study plane curves from a complex number perspective , you could try Zwikker ' s 1963 The advanced geometry of plane curves and their applicationsIf by geometric algebra you mean GrassmannCliffordHestenes style algebra , check out the stuff Jim Smith has been doing , or you could take a look at this thing ~ PC 00018 I haven ' t read it , or try these papers . They probably aren ' t what you ' re looking for , but I think Farouki ' s Pythagorean Hodograph Curves are pretty neat that book also has a lot of other interesting material in it . Also neat for formalistic theorizing about algebras for spline curves is Ramshaw ' s monograph On Multiplying Points The Paired Algebras of Forms and SitesDECSRCRR 169 . pdf probably a bit abstract for what you want here . What are your goals ? Do you want to design lenses and mirrors for cameras ? Model classical mechanics systems ? Construct arbitrary shapes out of polynomial curves so you can draw fonts or animate characters on a computer screen ? Design cut paths for CNC machines ? Approximate transcendental functions by some type of function that you can more easily compute with ? Find the prettiest proofs of thousandyearold theorems about circles ? Prepare yourself to study differential geometry or algebraic topology ? .