Angle between two XY positions

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Graphics 800, 600, 0

SetLineWidth 5

Repeat
	Cls
	ang# = ATan2(300 - MouseY(), 400 - MouseX())
	
	DrawLine 400, 300, 400 - (Cos(ang) * 100), 300 - (Sin(ang) * 100)
	
	DrawText ang, 0, 0
	
	FlushMem
	Flip
Until KeyHit(KEY_ESCAPE)

End