322 reputation
312
bio website
location
age
visits member for 1 year, 7 months
seen 6 hours ago

Sep
28
comment Surprising identities / equations
How can the sum from 1 to infinity of positive integers lead to a negative number?
Sep
11
comment Blue eyes: a logic puzzle
@IttayWeiss, what is an example of a harder logic problem?
Sep
8
awarded  Yearling
Jun
10
awarded  Popular Question
May
14
awarded  Caucus
Feb
6
comment Find a function that that makes the value of this improper integral equal to 1.
Thanks for your answer.
Feb
6
comment Find a function that that makes the value of this improper integral equal to 1.
I wasn't sure about the title. Please feel free to correct.
Feb
6
accepted Find a function that that makes the value of this improper integral equal to 1.
Feb
6
asked Find a function that that makes the value of this improper integral equal to 1.
Feb
1
comment How is this linear 2nd-order ODE solved?
My solution accidentally solved for equation (11) instead of (14) oops
Feb
1
comment How is this linear 2nd-order ODE solved?
Hint: Equation (5) in the paper is wrong. The subscript for phi should be k, not n.
Jan
18
awarded  Informed
Dec
29
accepted Summing elements of a sequence
Dec
28
accepted Is $f(x) = x/x$ the same as $f(x) = 1$?
Dec
28
asked Summing elements of a sequence
Oct
19
comment Successive Bounces of Ball Paradox
Could it be resolved if the balls height is assumed to be fixed for all bounces?
Oct
18
comment Successive Bounces of Ball Paradox
Thanks Sam, your answer appears to have resolved the apparent paradox.
Oct
18
accepted Successive Bounces of Ball Paradox
Oct
18
comment Successive Bounces of Ball Paradox
My argument for method 2 is like this. Let's assume velocity is 2m/s. Distance = 2*t. After 3 seconds, Distance = 2*3 = 6m, exceeding 2.
Oct
18
comment Successive Bounces of Ball Paradox
Argument for Method 2: Speed = Distance/time. Distance = Speed*Time. Speed is constant. There is no upper bound on time, and therefore no upper bound on distance.