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#Actualtom_mai78101

Posted 25 February 2014 - 03:46 AM

[attachment=20102:math.png]

 

This is the basis of touch screen math calculations I'm working on. Just so happens, I tend to forget simple calculations. sad.png Especially where I don't even know the theta in the picture above is called? (The smaller angle of line and X-axis where the line intersects two arbitrarily given Vector2D points on a 2D plane? The atan2 angle?)

 

Anyway, I'm looking for the answer to the question: Is the theta the answer to atan2(Vector 1, Vector 2)?


#2tom_mai78101

Posted 25 February 2014 - 03:45 AM

[attachment=20102:math.png]

 

This is the basis of touch screen math calculations I'm working on. Just so happens, I tend to forget simple calculations. sad.png Especially where I don't even know the theta in the picture above is called? (The smaller angle of line and X-axis where the line intersects two arbitrarily given Vector2D points on a 2D plane? The atan2 angle?)


#1tom_mai78101

Posted 25 February 2014 - 03:44 AM

[attachment=20102:math.png]

 

This is the basis of touch screen math calculations I'm working on. Just so happens, I tend to forget simple calculations. :( Especially where I don't even know the theta in the picture above is called? (The smaller angle of line and X-axis where the line intersects two arbitrarily given Vector2D points on a 2D plane?)


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