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  • 0 posts edited
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  • 58 votes cast
Sep
16
comment 5 moving points in plane, one goes to infinity
@Feanor: would you please show us your construction? Thanks a lot.
Sep
14
awarded  Nice Question
Sep
12
revised 5 moving points in plane, one goes to infinity
Adding the non-zero speed condition
Sep
12
comment 5 moving points in plane, one goes to infinity
@rattle: no, it's not allowed.
Sep
12
comment 5 moving points in plane, one goes to infinity
@alex.jordan: I meant that only at the initial position, non of the points is an intersection point of two lines. It's obvious when they start moving, they may meet each other.
Sep
11
comment 5 moving points in plane, one goes to infinity
To your first question, yes. Each point has it's own track. Also, each point move at its own distinct constant speed.
Sep
11
asked 5 moving points in plane, one goes to infinity
Aug
12
comment Minimum number of circles in a rectangle with no line in rectangle not intersecting any of them
Thanks, edited. Also it suffices to cover two diagonals to have each line intersecting at least one of them, but I'm intersected in the minimum number of such circles.
Aug
12
revised Minimum number of circles in a rectangle with no line in rectangle not intersecting any of them
edited title
Aug
11
asked Minimum number of circles in a rectangle with no line in rectangle not intersecting any of them
Jun
8
awarded  Constituent
Jun
8
awarded  Caucus
May
15
comment Identical colored squares in plane
Thanks!In fact, first of all I found the problem in that article!
May
14
comment How many ways to paint a rectangle
You may also see this one: math.stackexchange.com/questions/112565/… , which is a harder problem!
May
14
accepted coloring a $4\times 4$ square with $4$ colors
May
7
asked Points and lines covering them
May
6
asked Odd number of members, odd number of intersections
Apr
27
awarded  Benefactor
Apr
27
accepted $6$ points in plane with specific distances
Apr
27
comment $6$ points in plane with specific distances
Thanks a lot. And would you please place a picture of the figure you say in your post?