File: p1.py

package info (click to toggle)
cython 3.0.11%2Bdfsg-2
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid, trixie
  • size: 19,092 kB
  • sloc: python: 83,539; ansic: 18,831; cpp: 1,402; xml: 1,031; javascript: 511; makefile: 403; sh: 204; sed: 11
file content (12 lines) | stat: -rw-r--r-- 287 bytes parent folder | download 
1
2
3
4
5
6
7
8
9
10
11
12
 
import math

def great_circle(lon1, lat1, lon2, lat2):
    radius = 3956  # miles
    x = math.pi/180.0

    a = (90.0 - lat1)*x
    b = (90.0 - lat2)*x
    theta = (lon2 - lon1)*x
    c = math.acos(math.cos(a)*math.cos(b) + math.sin(a)*math.sin(b)*math.cos(theta))

    return radius*c