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#1 Re: Help Me ! » Latitude and Longitude » 2009-04-02 16:40:02
Thanks for your help John. I was wanting to use Haversine in Excel and have found enough on the web to get me going. Cheers, Sandy
#2 Help Me ! » Latitude and Longitude » 2009-04-01 20:31:07
- gsandy
- Replies: 2
I am wanting to use latitude and longitude (degrees and decimal degrees) of two positions to work out the distance and angle between the two. I have used Pythagoras theory which gives an approximate answer based on the fact that one minute of angle is one nautical mile. There must be a more accurate way to calculation the distance and angle, do you know? 
Thanks Sandy
#3 Re: Help Me ! » Radius given arc length and central rise » 2006-04-07 17:22:06
Havnt quite solved the problem yet. Following you logic to the next step I get:
B/(1-cosB) = (arc length x 90)/(pi x rise): B is 1/2 arc bisect angle in degrees & rise is your OM (l)
Now need help to solve for B
#4 Help Me ! » Radius given arc length and central rise » 2006-04-07 11:16:54
- gsandy
- Replies: 4
Given the curved arc length and central rise (distance from centre of chord to centre of arch), how is the radius caculated? thanks Sandy:(:(
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