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-rw-r--r-- | libtellurian_azimuthal_radius.3 | 61 |
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diff --git a/libtellurian_azimuthal_radius.3 b/libtellurian_azimuthal_radius.3 new file mode 100644 index 0000000..a1be8aa --- /dev/null +++ b/libtellurian_azimuthal_radius.3 @@ -0,0 +1,61 @@ +.TH LIBTELLURIAN_AZIMUTHAL_RADIUS 3 libtellurian +.SH NAME +libtellurian_azimuthal_radius \- Calculate a azimuthal radius of curvature + +.SH SYNPOSIS +.nf +#include <libtellurian.h> + +double libtellurian_azimuthal_radius(double \fIlatitude\fP, double \fIazimuth\fP); + +double libtellurian_azimuthal_radius_radians(double \fIlatitude\fP, double \fIazimuth\fP); +.fi +.PP +Link with +.I -ltellurian +.IR -lm . + +.SH DESCRIPTION +The +.BR libtellurian_azimuthal_radius () +function calculates the Earth's azimuthal radius of +curvature at a given +.I latitude +for a given +.IR azimuth , +that is, the radius of curvature along the normal +section in the direction of the +.I azimuth +at the specified +.I latitude. +.PP +The +.I latitude +shall be specified according to GPS and in degrees, +likewise, the +.I azimuth +shall be specified in degrees. +.PP +The +.BR libtellurian_azimuthal_radius_radians () +function is identical to the +.BR libtellurian_azimuthal_radius () +function except that +.I latitude +and +.I azimuth +shall be specified in radians. + +.SH RETURN VALUE +The +.BR libtellurian_azimuthal_radius () +and +.BR libtellurian_azimuthal_radius_radians () +functions return the radius of curvature +measured in meters. + +.SH ERRORS +None. + +.SH SEE ALSO +.BR libtellurian (7) |