Reputation
625
Top tag
Next privilege 1,000 Rep.
Create new tags
Badges
5 18
Impact
~16k people reached

  • 0 posts edited
  • 0 helpful flags
  • 57 votes cast
Apr
2
comment complete the sequence: (8, 6, 2, …)
wow! perffect, thanks! Two remained doubt (sorry for my poor math background): 1) why $sign(sin(x^2))$ give a square? 2) how can i achive parametric formulas $x = \dots$, $y=\dots$ ?
Apr
2
asked complete the sequence: (8, 6, 2, …)
Mar
6
comment How can I prove the formula for calculating successive entries in a given row of Pascal's triangle?
good tricky and mnemonic way!
Mar
6
accepted How can I prove the formula for calculating successive entries in a given row of Pascal's triangle?
Mar
4
comment How can I prove the formula for calculating successive entries in a given row of Pascal's triangle?
@Arturo: thanks for editing, english is not my main language!
Mar
4
comment How can I prove the formula for calculating successive entries in a given row of Pascal's triangle?
i didn't know exactly what are best tags for this post
Mar
4
asked How can I prove the formula for calculating successive entries in a given row of Pascal's triangle?
Feb
9
accepted how many bits to write $\sqrt x $?
Feb
7
awarded  Critic
Feb
7
awarded  Teacher
Feb
7
answered how many bits to write $\sqrt x $?
Feb
7
comment how many bits to write $\sqrt x $?
ohu yeah ross, i've got the point and i was writing last comment while you get me the solutions! thanks to all!
Feb
7
comment how many bits to write $\sqrt x $?
mhmmm one moment.. no! $\sqrt x$ is long..$\sqrt x$! so the formula is $log_2 \sqrt x$ = $\frac{log x}{2}$
Feb
7
comment how many bits to write $\sqrt x $?
@Yuval: "how big can $\sqrt x$ be" is the point :-) sure more less that $\frac{x}{2}$.. i can't see a link with exponential.. the problem is that i don't manage to solve $log^{\frac{1}{2}}x$.
Feb
7
awarded  Editor
Feb
7
revised how many bits to write $\sqrt x $?
added 27 characters in body
Feb
7
asked how many bits to write $\sqrt x $?
Feb
7
accepted clarification on Chernoff's inequality
Feb
7
comment clarification on Chernoff's inequality
thanks for your response, but i'm quite new in probability.. could you be a little more verbous?
Feb
5
asked clarification on Chernoff's inequality