quangthang2004 Posted March 20, 2012 Share Posted March 20, 2012 Dear All, I assume that I have three points such as P1(x,y), P2(a,b ) and P3 (c,d). So please help me how to calculate the angle with P1 is vertex of them. I will be grateful if someone consider my requestThanks in advance Link to comment Share on other sites More sharing options...
justsomeguy Posted March 20, 2012 Share Posted March 20, 2012 Look up the geometric formula that applies to your situation. http://www.google.com/search?client=opera&rls=en&q=calculate+angle+from+three+points&sourceid=opera&ie=utf-8&oe=utf-8&channel=suggest Link to comment Share on other sites More sharing options...
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