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howling

204 karma · joined January 22, 2015

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howling··on An alternative argument for why women leave STEM
I think people are arguing that to be fair, time spent on raising children should be shared equally between father and mother.
howling··on For mathematicians, = does not mean equality
All these discussions of "=" are missing the point.

The notation "x = x + 1" is awful because at lhs x denotes a reference to an integer while at rhs x denotes the value hold by the reference. If you know C, it is similar to the difference between an integer pointer *x and an integer x. As an illustration, here are two programs that are doing the same thing, one in C and one in Haskell.

  #include <stdio.h>

  int main() {
    int x = 0;
    x = x + 1;
    printf("%d\n", x);
    return 0;
  }


  import Data.IORef

  main :: IO ()
  main = do
    xref <- newIORef 0
    x1 <- readIORef xref
    writeIORef xref (x1 + 1)
    x2 <- readIORef xref
    print x2
howling··on The fight over transparency in the meat industry
If you have to force yourself not to name and play animals to be able to kill them eventually, it is probably wrong to kill them.

Disclaimer: I am a vegetarian.

howling··on The seventh row of the periodic table is now full
More like a bulged spiral.

http://www.av8n.com/physics/periodic-table.htm

howling··on A Bestseller Book That Didn't Exist
First thing I do after reading this story: search online to make sure this is not itself a hoax. Seems legitimate though, or somebody has planned the hoax since 2009.

https://en.wikipedia.org/w/index.php?title=I,_Libertine&oldi...

howling··on Ela, dynamic functional language
From what I see it is pretty similar to Haskell besides some minor syntax differences, strict evaluation by default, and dynamic typing. So why should I use this over Haskell?
howling··on I Was an Animal Experimenter
I always wonder why people feel so upset over millions of animals being experimented every year when we kill and eat billions of animals every day.
howling··on Visualizing matrix multiplication as a linear combination
There are 2 types of matrix multiplications which should not be confused with each other.

The first type is a change of basis where the columns of the matrix are the old basis represented in the new basis.

The second type is a linear function that takes in a vector and outputs another vector.

howling··on India students caught 'cheating' in exams in Bihar
How about just having no grades at all? The companies/universities get to decide which applicants to choose by their own methods.
howling··on India students caught 'cheating' in exams in Bihar
How does one cheat in IMO? Is your high school teacher your country's IMO team leader?
howling··on [dead]
This [1] may seem sexist, but is it true?

Basically the article claims that while girls have a slightly higher average IQ than boys, boys have greater variance in IQ than girls. So while there is not much difference in average boys' and girls' mathematical abilities, the super smart top 0.001% will consist predominantly of boys.

[1]: http://www.lagriffedulion.f2s.com/math2.htm

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