Welcome to Dr Bill Hazelton's HP-33S calculator programs for Surveyors and Geomatics Engineers.

Click on a link below to download the program and documentation (or other stuff in Excel) as a PDF.

Closure and Related Programs

1. Closure with Area

2. Closure with Co-ordinates

3. Two Missing Distances

4. 3-Point Horizontal Resection

5. 2-D Co-ordinate-based Intersection Program

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

7. "Missing Azimuth of One Side & Missing Distance of Another" Closure Solution

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!) New Program!

Triangle Solutions

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

Radiations

1. Computing a Radiation given Two Offsets from Two Lines of Known Azimuth

Mathematics

1. Roots of a Quadratic Equation New Program!

Utility Programs

1. HMS+, HMS–, Clear Stack

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

3. Co-ordinate 'Inverse' 1: Azimuth and Distance from Co-ordinates

4. Co-ordinate 'Inverse' 2: Bearing and Distance from Co-ordinates

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

Lambert 2. Convert Latitude and Longitude to Lambert Conformal Conic Co-ordinates (SPCS, etc.) New Program!

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 & 27 <--> 83) conversions in an Excel Spreadsheet

TM 2. Convert Latitude and Longitude to Transverse Mercator Co-ordinates (UTM, SPCS, etc.) New Program!

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

HP-33S User Manual Download (a 2.63 MB PDF download)

Legal stuff, license, copyright, etc. for this website and 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

HP Virtual Classrooms

A Quick Introduction to RPN

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

Squeeze one more program in! Click here for one method.

Special News!! HP has recently released the HP-35s. This is similar to the HP-33S, but overcomes the main programming limitation, in that while there are still just 26 labels, you can now direct program execution to specified line numbers. Also, the calculator will update the GTO instructions as line numbers change with editing!

In the coming months, I plan to update the HP-33S programs to run on the HP-35s. These updated programs will be available in an adjacent, parallel web-site, so that the two can be dealt with separately. Some programs will work on both calculators, but if there is any rectangular to polar (or vice versa) conversion, they won't. I will update the current programs on this site, which will remain while the HP-33S is still in regular use, but will also develop some for the HP-35s. While the HP-33S remains in production, I will try to write software for both calculators, as they are fairly similar.

Click here to go to the parallel HP-35s program website.

Looking for more stuff not shown here? Want a special program? Got comments, feedback, quality issues? Get in touch, we may just happen to have something to suit.

To see something about the HP-49g+ calculator and some initial thoughts on the new HP-50g calculator that replaces it (it is a lot better in the keyboard), click here.

Contact Dr Bill Hazelton nwjh@mac.com

Page and site updated 4th April, 2008.

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This site and associated works are licensed under a Creative Commons Attribution 3.0 License.