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!)

Curves

1. Compute Values for a Parabolic Vertical Curve (Note: uses 6 labels!)

Triangle Solutions

1. Solutions for Plane Triangles: all 5 basic cases covered, each in their own program

Mathematics

Utility Programs

2. Co-ordinate 'Forward' and 'Inverse' (not actual programs, but keystroke sequences)

State Plane Co-ordinate System (SPCS) Computation Programs

Lambert 1. Lambert Traverse Computations

[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.]

Associated Material

Notes on the Lambert Projection and working on the SPCS in Lambert

SPCS 1983 Lambert Base Data (all relevant states and zones)

SPCS 1927 Lambert Base Data (all relevant states and zones)

All the SPCS Base Data in an Excel Spreadsheet

TM 1. Transverse Mercator Traverse Computations

[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.]

Associated Material

Notes on the Transverse Mercator Projection and working on the SPCS in TM

SPCS 1983 Transverse Mercator Base Data (all relevant states and zones)

SPCS 1927 Transverse Mercator Base Data (all relevant states and zones)

Lat/Long <--> E/N (27 & 83) conversions in an Excel Spreadsheet

Geodetic Computation Programs (see also the SPCS programs, above)

XYZ 1. Convert Lat, Long, Ellipsoidal Height on any ellipsoid to XYZ Geocentric Co-ordinates

XYZ 2. Convert XYZ Geocentric Co-ordinates to Lat, Long, Ellipsoidal Height on any ellipsoid

Traverse Closure using Latitude and Longitude, and the Gauss Mid-Latitude Formulae

Co-ordinate Transformation Programs

Helmert 1 & 2. Planar 2-D Co-ordinate Helmert Transformation, determining parameters and transforming

Other Useful Things

HP-33S User Manual Update

Legal stuff, license, copyright, etc. for this material

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.

HP Computer-based Training

Get the 27th 'Label': A Work-Around