MapForums
Community of VE/MapPoint Users and Developers
in context: how to solute a geo-math equation
This is a discussion on in context: how to solute a geo-math equation within the MapPoint 2006/2009 Discussion forums, part of the Map Forums category; Hallo, - may be someone here is a little bit more fit in trigonometrical mathmatic and can give an advise... ...
| |||||||
| Register | Blogs | FAQ | Members List | Calendar | Search | Today's Posts | Mark Forums Read |
05-21-2006
| |||
| |||
| in context: how to solute a geo-math equation The following formular is given: -tan(a)*tan(l)*sin(o) = cos(r) + sin(r)*tan(a)*cos(o) a, l and o are known I cannot figure out how to solute this equation for r. Thanks to everyone who's answering martin         |
|
05-22-2006
| |||
| |||
|
Hi everybody, Happy to visit the forum today. Here is the solution found by my friend Noel who works with me in the same service ( not in my Atlas Couscous where the math formula to find the best sauce is a secret and is more complicated  )Code: cos(R) = sin(R)*tang(A)*cos(O)+tang(A)*tang(L)*sin(O)
cos˛(R) = sin˛(R)*tang˛(A)*cos˛(O)+tang˛(A)*tang˛(L)*sin˛(O)
+ 2 sin(R)*tang˛(A)*cos(O)*sin(O)*tang(L)
0 = sin˛(R)*(1+tang˛(A)*cos˛(O)
+ 2sin(R)*tang˛(A)*cos(O)*sin(O)*tang(L)
- 1 + tang˛(A)*tan˛(L)*sin˛(O)
X = ( 2 tang˛(A)*cos(O)*sin(O)*tang(L))˛
- 4(1+tang˛(A)*cos˛(O))(tang˛(A)*tang˛(L)*sin˛(O)-1)
sin(R) = ( - 2 ( tang˛(A)*cos(O)*sin(O)*tang(L) (+ or -) squareroot(X) ) /
2(1+tang˛(A)*cos˛(O))
R = arcsin( of all this... )
Hope this will help I did no test, but I think you will find easilly your algorithm (+ or - ) means that there 2 solutions , you have to test wich one is correct , try (+) and (-) . Mohamed www.atlascouscous.com |
|
05-22-2006
| |||
| |||
|
whow... To quadrate the formula is something I surely would never had been done... I will test it tomorrow - it'll be a hard job because I really need to conceive it and that means to get some school stuff back in my mind... I'll contact you if I find a secret recipe for a sauce. Thank you very much martin |
|
05-23-2006
| |||
| |||
|
Hi Mohamed, ...got it and it works!!!!! Thanks a lot for your or your friends effort! martin |
|
05-23-2006
| |||
| |||
|
Hi Martin, I used some trigonometrical tricks with Mappoint, but I don't understand the use of your formula! Never mind, I will look at this another time! Ciao |
|
05-23-2006
| |||
| |||
|
...it is to draw nautical lines in the maps... for sailing away... see you |
 |
| Tags |
| context, equation, geomath, solute |
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
| Thread Tools | |
| Display Modes | |
Linear Mode
| |
| ||||
| Thread | Thread Starter | Forum | Replies | Last Post |
| By Right-click displaying context menu on map | Banu | MapPoint 2006/2009 Discussion | 19 | 10-16-2007 07:46 AM |
| Disable Context menu | Anonymous | MapPoint 2006/2009 Discussion | 10 | 05-27-2005 01:03 PM |
| Custom context menu | Anonymous | MapPoint 2006/2009 Discussion | 3 | 09-10-2004 10:15 PM |
| VB.NET & overriding the map point context menu... | Anonymous | MapPoint 2006/2009 Discussion | 0 | 09-05-2002 08:25 AM |
| Is it possible to disabled the context menus that .... | Anonymous | MapPoint 2006/2009 Discussion | 1 | 06-19-2002 04:20 AM |
All times are GMT -5. The time now is 08:15 PM.
