703 reputation
418
bio website
location Tehran
age
visits member for 2 years, 10 months
seen Feb 11 at 6:23

Iran Mathematical Olympiad Silver Medalist 2010

Iran Mathematical Olympiad Gold Medalist 2011

International Mathematical Olympiad Bronze Medalist 2012

Studing Mechanical Engineering at Sharif University of Technology


Jul
2
awarded  Curious
Jan
23
awarded  Nice Question
Jan
11
accepted Two functions on two areas having the same integrals
Jan
7
comment Two functions on two areas having the same integrals
Thanks, but can you find some non-constant (and probably continuous) solutions?
Jan
7
asked Two functions on two areas having the same integrals
Sep
28
awarded  Yearling
May
10
awarded  Popular Question
May
4
awarded  Nice Question
Dec
9
awarded  Good Question
Nov
19
awarded  Popular Question
Sep
28
comment Number of different necklaces using $m$ red and $n$ white pebbles
Yes, you're right. But things get different when they are not coprime.
Sep
28
asked Number of different necklaces using $m$ red and $n$ white pebbles
Sep
28
awarded  Yearling
Sep
16
comment 5 moving points in plane, one goes to infinity
Nice construction, but you didn't notice the condition that No three of the lines should intersect in one point. Without this condition, making an example for $5$ is also easy, just consider $5$ points on sides and one diagonal of a square.
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.