Imagine there is a very very large room in the shape of a hollow cube. There are magic balls hanging in the air at fixed discrete positions of the room. No magic ball has another one exactly above it.
I am trying to determine whether a line segment (i.e. between two points) intersects a sphere. I am not interested in the position of the intersection, just whether or not the segment intersects the s
I have two nested lists, each nested list containing two strings e.g.: list 1 [(\'EFG\', \'[3,4,5]\'), (\'DEF\', \'[2,3,4]\')] and list 2 [(\'DEF\', \'[2,3,4]\'), (\'FGH\', \'[4,5,6]\')]
I am trying to return an intersection of datamapper collections relating to tagged topics. Before we go any further I should point out the obvious:
The query: SELECT id_user FROM Rating Where id_movi开发者_StackOverflowe=2 INTERSECT SELECT id_user
I\'m implementing a small game and am having trouble getting the physics working properly. In this game, there is one ball (a circle which moves from frame to frame, and may change radius) and several
I have a list of session start and stop times, in format like so: 23/11/09 15:18:32, 23/11/09 15:18:40
I have a canvas for diagramming, and want to join nodes in the diagram by directed lines (arrow ends).
I\'m stuck with this little problem and my algorithm to solve this doesn\'t hold for all cases. Does anybody has an id开发者_运维百科ea how to solve this?
My problem: How can I take two 3D points and lock them to a single axis? For instance, so that both their z-axes are 0.
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