test
sinh(0.5) = 0.52109530549375
cosh(0.5) = 1.1276259652064
atanh(0.5) = 0.54930614433405
t = 1.917927249658
r = 1.917927249658
xi = 1.090522990826
eta = 0.018946417038395
N = 6945440.3912936
E = 620476.15003805
test: 6945440.3912936
fq 1.000718019346
fq 1.000718019346
cosh(0.01) = 1.0000500004167
The point on a topographic map: [1]
The point on a topographic map: [2]
