The HP-33S calculator is no longer in production, but it is a very capable instrument for middle-range computations, especially for general surveying work. Over the years, a number of programs were developed for the HP-33S, and these can be downloaded from this site. In addition there are some other materials, such as links to HP training, the User Manual, and other useful connections.
Click on the links below (in green, strangely enough!) to open a new window with the PDF file displayed in it. You can download the file from that window.
Closure and Related Programs
8. Crandall's Adjustment for a Closed Traverse (Note: uses 7 labels!)
1. Compute Values for a Parabolic Vertical Curve (Note: uses 6 labels!)
1. Solutions for Plane Triangles: all 5 basic cases covered, each in their own program
2. Co-ordinate 'Forward' and 'Inverse' (not actual programs, but keystroke sequences)
State Plane Co-ordinate System (SPCS) Computation Programs
[This program converts ground measurements (angles and distances) to Lambert Conformal Conic projection 'plane' measurements, so that a traverse may be computed using conventional plane methods.]
[This program converts ground measurements (angles and distances) to Transverse Mercator projection 'plane' measurements, so that a traverse may be computed using conventional plane methods.]
Geodetic Computation Programs (see also the SPCS programs, above)
Co-ordinate Transformation Programs
Other Useful Things
HP-33S User Manual Download (a 2.63 MB PDF download)
Free Training! HP offers Computer-based Training, virtual classrooms, downloadable material and other good stuff to help you get the most from your calculator. Click on the links below to get to the HP calculator website. There are links there to get you around what HP have on offer. The HP-33S has some training materials to help with the FE/PE exams, as well as other materials.
Get the 27th 'Label': A Work-Around