GEOmap (version 2.1)

difflon: Difference between Longitudes

Description

Difference between Longitudes

Usage

difflon(LON1, LON2)

Arguments

LON1

Longitude in degrees

LON2

Longitude in degrees

Value

• deg
  degrees difference
• sn
  direction of rotation

Details

takes into account crossing the zero longitude

Examples

difflon( 34 , 67)

###  here we cross the zero line
difflon( 344 , 67)