Return the eccentricity given a flattening
Examples:
Scalar input:
f_earth = 0.0033528; flat2ecc (f_earth) => 0.081819
Vector input:
flat = 0 : .01 : .05;
flat2ecc (flat)
ans =
0.00000 0.14107 0.19900 0.24310 0.28000 0.31225
See also: ecc2flat.
Package: mapping