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Jan
31
awarded  Nice Answer
Jan
31
answered Find five positive integers whose reciprocals sum to $1$
Nov
29
revised What's the expected value of a lottery ticket?
spelling, minor edit
Nov
29
accepted What's the expected value of a lottery ticket?
Nov
29
suggested approved edit on What's the expected value of a lottery ticket?
Nov
29
comment What's the expected value of a lottery ticket?
@cardinal I hadn't thought of it that way, but it's a good point and looks right to me, thanks.
Nov
29
comment What's the expected value of a lottery ticket?
@FlybyNight $n$ is a random variable whose distribution is determined from $p$ and $t$. I believe you do have enough information.
Nov
29
awarded  Critic
Nov
29
asked What's the expected value of a lottery ticket?
Nov
9
accepted Can there be a cubical bubble?
Nov
9
awarded  Yearling
Jul
10
awarded  Nice Answer
Jun
8
awarded  Nice Answer
Mar
12
accepted Why can't we interchange differentiation with taking a limit of a series of functions?
Feb
20
awarded  Nice Answer
Feb
13
comment Singing Bird Problem
@BrianM.Scott Yes, you're right, thanks. Tried a new answer.
Feb
13
revised Singing Bird Problem
added 288 characters in body
Feb
13
answered Singing Bird Problem
Jan
30
awarded  Necromancer
Jan
22
comment Can there be a cubical bubble?
@Rahul Ah, now I see. What I meant is that the performer made a roughly cubical compartment, but it is not perfect. I wanted to know if a perfect cube was mathematically possible, or whether, for example, the corners would always be a little rounded off.