(41C) Distance-Bearing from LAT-LON

[dayd]

Thanks for the info.
Here’s a working link to the non-1884-but-less-time-travel-1984 Article (pdf) p.45;
Radio & Electronics World september 1984
There’s also 2 Basic versions (ZX81 & BBC-B).
The focal program doesn’t seam to use degrees but degrees minutes seconds and express results in English miles.
I don’t get the point of the 61 line !?
Travel space and time safely...