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-rw-r--r-- | libtellurian_gaussian_radius.3 | 52 |
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diff --git a/libtellurian_gaussian_radius.3 b/libtellurian_gaussian_radius.3 new file mode 100644 index 0000000..aaa84dc --- /dev/null +++ b/libtellurian_gaussian_radius.3 @@ -0,0 +1,52 @@ +.TH LIBTELLURIAN_GAUSSIAN_RADIUS 3 libtellurian +.SH NAME +libtellurian_gaussian_radius \- Calculate a Gaussian radius of curvature + +.SH SYNPOSIS +.nf +#include <libtellurian.h> + +double libtellurian_gaussian_radius(double \fIlatitude\fP); + +double libtellurian_gaussian_radius_radians(double \fIlatitude\fP); +.fi +.PP +Link with +.I -ltellurian +.IR -lm . + +.SH DESCRIPTION +The +.BR libtellurian_gaussian_radius () +function calculates the Earth's Gaussian radius of +curvature at a given +.IR latitude , +that is, the geometric mean of the meridian and +the transverse radii of curvature at the given +.IR latitude . +.PP +The +.I latitude +shall be specified according to GPS and in degrees. +.PP +The +.BR libtellurian_gaussian_radius_radians () +function is identical to the +.BR libtellurian_gaussian_radius () +function except that +.I latitude +shall be specified in radians. + +.SH RETURN VALUE +The +.BR libtellurian_gaussian_radius () +and +.BR libtellurian_gaussian_radius_radians () +functions return the radius of curvature +measured in meters. + +.SH ERRORS +None. + +.SH SEE ALSO +.BR libtellurian (7) |