PrgCalcPro: Great Circle: Distance Between 2 Places on Earth in kilometers
Important: Switch the calculator to Degrees mode before calculation!
Formula:
E = acos( sin N1 sin N2 + cos N1 cos N2 cos (E1 - E2) )
Distance = 6371 * E * π / 180
Store the following values in decimal degrees:
A = N1 (longitude 1), B = E1 (latitude 1)
C = N2 (longitude 2), D = E2 (latitude 2)
Use [ K ] [ swap ] ( ° ' > to convert from H.M to Decimal degrees if needed)
Program:
0: 6A ; RA
1: 1C ; sin
2: 6C ; RC
3: 1C ; sin
4: 12 ; *
5: 6A ; RA
6: 1D ; cos
7: 6C ; RC
8: 1D ; cos
9: 12 ; *
10: 6B ; RB
11: 6D ; RD
12: 11 ; -
13: 1D ; cos
14: 12 ; *
15: 10 ; +
16: 1A ; acos
17: 06 ; 6
18: 03 ; 3
19: 07 ; 7
20: 01 ; 1
21: 12 ; *
22: 20 ; Pi
23: 12 ; *
24: 01 ; 1
25: 08 ; 8
26: 00 ; 0
27: 13 ; /
28: 50 ; STOP
Example:
Los Angeles (N = 34.05°, E =-118.25°)
Moscow (N = 55.783333°, E = 37.616666°)
Approximate distance: 9,766.5757 km
This blog is property of Edward Shore, 2016.
