little math problem October 2018

[sasa]

(10-20-2018 09:41 PM)pier4r Wrote:  We could assume they can use the information given a priory about the planet and then check the sun/stars to define their positions, although that is really close to say "let's say there is an orbiting module around the planet".

The original problem was about two friends left on a big sphere where communication is impossible and question was what is the fastest way to find each other... And that is not a math, but just a brain teaser type of puzzle...

Back to your modification... If there is no way to determine position (including navigation by stars), reference point and direction, this is simply "needle in a haystack" search (without a magnet). What only left is what Tomas wrote, assuming primary rover have unlimited energy, memory to map whole terrain and unlimited time...

Without some more missing details mentioned already, this kind of "brute force" solution only applies...