Please forward singular and nonsingular matrix pdf error screen to 158. This web-page contains solutions to various geographical position calculations, 10 examples are given below. A Non-singular Horizontal Position Representation, The Journal of Navigation, Volume 63, Issue 03, pp 395-417, July 2010. Thus this article should be cited in publications using this page or the downloaded program code.

Given two positions A and B. Given the position of vehicle B and a bearing and distance to an object C. Find the exact position of C. Given an ECEF-vector of a position. Find geodetic latitude, longitude and height.

Given geodetic latitude, longitude and height. Given the position of B at time t0 and t1. Find an interpolated position at time ti. Given three positions A, B, and C. Given path A going through A1 and A2, and path B going through B1 and B2.

Find the intersection of the two paths. Given path A going through A1 and A2, and a point B. The four first examples are simply solved by using the functions provided for download here. The functions are exact, and can use ellipsoidal or spherical Earth model.