I want to find out an unknown target location (latitude and longitude co-ordinates). There are +3 lat-long known points and for each point a distance in meters to the target location. I found some code on internet like this, this and this but when I put my coordinates it gives this error which I couldn't solve.
z = numpy.sqrt(pow(DistA,2) - pow(x,2) - pow(y,2))
RuntimeWarning: invalid value encountered in sqrt
the coordinates are (lat, lon, radius(m))
40.222167, 28.871361, 50 40.22175, 28.87169, 50 40.222528, 28.872083, 50
Could the error be due to location difference?
y, and your data has lat, lon, and radius. Try printing the contents of the variables before executing the square root.