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diff --git a/libtellurian_meridian_radius.3 b/libtellurian_meridian_radius.3 new file mode 100644 index 0000000..a13b12b --- /dev/null +++ b/libtellurian_meridian_radius.3 @@ -0,0 +1,50 @@ +.TH LIBTELLURIAN_MERIDIAN_RADIUS 3 libtellurian +.SH NAME +libtellurian_meridian_radius \- Calculate a meridian radius of curvature + +.SH SYNPOSIS +.nf +#include <libtellurian.h> + +double libtellurian_meridian_radius(double \fIlatitude\fP); + +double libtellurian_meridian_radius_radians(double \fIlatitude\fP); +.fi +.PP +Link with +.I -ltellurian +.IR -lm . + +.SH DESCRIPTION +The +.BR libtellurian_meridian_radius () +function calculates the Earth's meridian radius of +curvature (meridional radius of curvature; the +curvature in the north–south direction), at a given +.IR latitude . +.PP +The +.I latitude +shall be specified according to GPS and in degrees. +.PP +The +.BR libtellurian_meridian_radius_radians () +function is identical to the +.BR libtellurian_meridian_radius () +function except that +.I latitude +shall be specified in radians. + +.SH RETURN VALUE +The +.BR libtellurian_meridian_radius () +and +.BR libtellurian_meridian_radius_radians () +functions return the radius of curvature +measured in meters. + +.SH ERRORS +None. + +.SH SEE ALSO +.BR libtellurian (7) |