This NEW Surveying Solutions Bookelt for the HP-35s has everything the HP-33s Booklet had and a lot more. The 35s, which is Authorized for use on the NCEES exams, can even store coordinates as part of what you can program. It has 800 storage registers, accessible through indirect addressing. This feature allows the storage and recall of coordinate pairs by point number. Professionals and college students have a flexibility no other scientific calculator can offer with the choice of RPN (reverse polish notation) or algebraic entry-system logic. This calculator is completely programmable, you can work more efficiently with it's keystrokes\ programming and handle the heaviest workloads with ease using 800+ independent storage registers plus 30 KB of memory. D'Zign's book, "Surveying Solutions for the HP 35s" gives step-by-step instructions for input of the programs with user instructions and examples for each. The programs include Traversing, Inversing, all of the normal Intersection routines, Circular and Vertical Curves, Vertical Intersection, Triangle Solutions, and more. Programs are included for adding and subtracting in Degrees, Minutes and Seconds directly, and the user has the option of working in either Azimuth or Bearing/Quad in the coordinate geometry programs. HP 35 not included and we do not sell HP calculators.