Accuracy in angle units for certain map computations
epsm will be removed in a future release. If necessary, you can
replace the expressions listed in the following table with the constants shown:
epsm is the limit of map angular precision. It
is useful in avoiding trigonometric singularities, among other things.
epsm(units) returns the same angle in units
corresponding to any valid angle units character vector. The default is
The value of
epsm is 10–6 degrees. To put
this in perspective, in terms of an angular arc length, the distance is
epsmkm = deg2km(epsm) epsmkm = 1.1119e-04 % kilometers
This is about 11 centimeters, a very small distance on a global scale.