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| 2009/3/3-11 [Politics/Domestic/California] UID:52667 Activity:nil |
3/3 Want to play lotto? Try this app first:
http://tolearnflash.appspot.com/lotto
\_ What? You're saying the lotto is a racket? Say it ain't so!
\_ The random number generator seems to be fucked. I'm seeing numbers
that way outside of expected outcomes.
that are way outside of expected outcomes.
\_ I wonder if it wouldn't be more productive to expand lotto
opportunities to other social endeavors: lotto for transportation
budgets, for example, or an additional five dollar fee at the DMV
that enters you into a drawing; would people be more likely to
register their vehicles? CA could certainly use the money. |
| 2009/3/3-11 [Uncategorized] UID:52668 Activity:nil |
3/3 Hey you know that $1T TALF thing that govt is taking on much of the
loss side to help hedge funds with the securitization market? The Fed
just removed the compensation limit for execs, to help encourage
participation. w00t!
\_ Obama suggested today that we may be near the low. w00t x2! |
| 2009/3/3-11 [Transportation/Car, Transportation/PublicTransit] UID:52669 Activity:nil |
3/3 "Stimulus bill increases transit tax benefit for commuters"
http://www.bart.gov/news/articles/2009/news20090220b.aspx
"The law raises the amount of pretax income that workers enrolled in
employer-sponsored commuter benefits programs can use to pay for mass
transit -- from $120 per month to $230 per month."
\_ pity they encumber the EZRider program such that its difficult to
pay for BART fares via EZrider with employer-sponsored commuter
benefits. |
| 2009/3/3-5 [Uncategorized] UID:52670 Activity:nil |
3/3 Goldman Sachs calls Q1 GDP at -7.0% |
| 2009/3/3-5 [Computer/SW/Security, Computer/SW/Unix] UID:52671 Activity:high |
3/3/9 Happy Square Root Day
\_ This morning some guy on KCBS AM 740 was playing with this and said
something like "if you take the square root of every number, they
don't look so big anymore. For example, next week the square root
of my age is just 8. And the square root of the $838 billion
stimulus package is just $29 billion."
No wonder American kids rank last in math among industrialized
countries.
\_ i think the sqrt of his iq is also 8.
\_ Dude needs to go back to school, and age 8 seems like a good
time to learn about square roots.
\_ Huh? I don't see anything wrong with his statement.
\_ sqrt(838e9) is about 915423.
\_ I guess. sqrt(838) =~ 29. (Billion dollars) is the
units. Depends on how you look at it.
\_ Right, but you need to square root the units too,
just like sqrt(10000 m^2) = 100 m. The answer is
the same whether you consider the units to be m^2
or (10000 m^2) or whatever.
\_ I understand this, but what is the square
root of "2 dollars"? This is like asking what
is the square root of "2 cows". The original
statement said "square root of every number"
and not "square root of every quantity". You
could argue (correctly) that 838,000,000,000
is a number in itself and its root is not
29,000,000,000, but what about "838 cows"? What
is the square root of a cow? I think the key
number is 838 and not 838*(units). You have
to be pretty pedantical to not realize that.
\_ If your units are billions of dollars than
your square root units of ~ 31622 * $^(1/2).
sqrt (838) * sqrt (1,000,000,000) ~=
29 * 31622 ~=
915422
\_ 915422 *what*? Not dollars.
\_ $^(1/2) Which is 1/31622 of
(Billion $)^(1/2)
\_ Exactly, which is nonsense. So
ignore the units.
\_ If you ignore the units you can
turn it anything you want.
Sqrt($838e9) = $838e9 if my
units are "$838e9" and I've
decided units are meaningless.
\_ You have to use some common
sense here. The square root
of his age (64) is 8, not
8 (years)^1/2.
\_ But by your logic we can
make the units billions of
years, and now the the
square root of 64 is
252982.
Better example: the square root of $1 is 1 if
you are ignoring units, but the square root
of 100 pennies is 10! 100 pennies = 1 dollar
so how can those two be different.
$1 = 100c
sqrt($1) = sqrt(100c)
1 * $^(1/2) = 10 * c^(1/2)
The difference is in the units. 1 c^(1/2)
is, by definition, 1/10th of 1 $^(1/2).
\_ But what is a sqrt($)? or a sqrt(cent)?
\_ I guess you're right. Square rooting a number
independently of its unit like this makes no
sense, but it is what the original statement
said, and really it doesn't sound like he was
trying to make sense anyway. (FWIW, I think
sqrt("2 cows") is meaningless too, unless you
can come up with a meaning for 1.4 cow^(1/2).)
\_ Depends on how good you are at math, actually. |