198 reputation
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location Washington, DC
age 19
visits member for 3 years, 4 months
seen Jul 18 at 4:02

Dec
13
comment Calculating Distance of a Point from an Ellipse Border
Great! that clears a lot up, but I have only a few more questions: The quote says this is the "best approximation;" so how accurate is the equation exactly? Also, do you know of any less expensive (in terms of # of calculations) formulas that would be acceptable for use in a physics engine?
Dec
13
comment Calculating Distance of a Point from an Ellipse Border
A little explanation would be nice.... What's the function PE(u,v) represent, and what's 'u', 'v' and 't' represent?
Dec
13
asked Calculating Distance of a Point from an Ellipse Border
Sep
24
comment How to calculate the resulting velocitys and rotation speed after two concave polygons collide in 2d
:Can you point me to a more specific explination, or tell me what to search for to get the right results? Also some things don't make much sense... =p (is "perpendicular to the vector to the CM" a typo?) Thanks for replying!
Sep
24
asked How to calculate the resulting velocitys and rotation speed after two concave polygons collide in 2d
Sep
24
comment 2D elastic collision equation: How does it work?
:Is ''−ysinϕ'' the same as ''+cos(phi+pi()/2)*y'' ? and does this mean collision is totally different with friction =(, or can i apply this equation?
Sep
23
asked 2D elastic collision equation: How does it work?
Sep
18
awarded  Critic
Sep
14
asked How to find the center of mass of a complex 2d shape
Jul
21
comment Equation to check if a set of vertices form a real polygon?
could you maybe write out the algorithm you think would transfer best to c++ application? Even if i could find a pdf of computational geometry I don't think i would be able to find the equations you speak of...
Jul
20
awarded  Supporter
Jul
20
accepted Equation to find if a set of vertices form a concave shape?
Jul
20
asked Equation to check if a set of vertices form a real polygon?
Jul
13
asked Equation to find if a set of vertices form a concave shape?
Jun
27
awarded  Student
Jun
27
awarded  Scholar
Jun
27
accepted solving a problem using degrees OR radians
Jun
27
asked solving a problem using degrees OR radians