| open Core.Std | |
| (* See: http://en.wikipedia.org/wiki/Linear_interpolation *) | |
| let linear_interpolation (px, py) x (nx, ny) = | |
| let y = (Float.of_int py) +. | |
| (Float.of_int (ny - py)) *. | |
| (Float.of_int (x - px)) /. (Float.of_int (nx - px)) in | |
| (x, y) |
| #! /usr/bin/env python2 | |
| # Requires: PIL, colormath | |
| # | |
| # Improved algorithm now automatically crops the image and uses much | |
| # better color matching | |
| from PIL import Image, ImageChops | |
| from colormath.color_conversions import convert_color | |
| from colormath.color_objects import LabColor | |
| from colormath.color_objects import sRGBColor as RGBColor |
| open System; | |
| let sw = System.Diagnostics.Stopwatch() | |
| sw.Start() | |
| let ispalindrom (x):bool = | |
| let s = x.ToString().ToCharArray() |> Array.rev | |
| (new string(s) = x.ToString()) | |
| printfn "%d" (seq { | |
| for x in 899..999 do | |
| for y in x..999 do | |
| if ispalindrom (x*y) then yield (x*y) |
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"
| def yes_or_no(question): | |
| reply = str(raw_input(question+' (y/n): ')).lower().strip() | |
| if reply[0] == 'y': | |
| return True | |
| if reply[0] == 'n': | |
| return False | |
| else: | |
| return yes_or_no("Uhhhh... please enter ") |
| #Sample code | |
| #Hello world | |
| "Hello world!" print | |
| #Factorial | |
| factorial := method(n, if(n == 1, 1, n * factorial(n - 1))) | |
| 99 bottles of beer |
I use Namecheap.com as a registrar, and they resale SSL Certs from a number of other companies, including Comodo.
These are the steps I went through to set up an SSL cert.
I was fighting with Haskell last weekend. At first, I couldn't install some missing libraries with Cabal, and then, when trying to find out what's wrong, I ended up removing the whole Haskell installation — only to find out I could no longer install neither the Haskell Platform nor even just Cabal Install! The warnings I would see were more or less about the use of the single quote in source code:
Preprocessing library text-0.11.2.3...
Data/Text.hs:6:52:
warning: missing terminating ' character [-Winvalid-pp-token]
-- Copyright : (c) 2009, 2010, 2011, 2012 Bryan O'Sullivan,
| #!/usr/bin/env python | |
| # saved to ~/bin/batcharge.py and from | |
| # http://stevelosh.com/blog/2010/02/my-extravagant-zsh-prompt/#my-right-prompt-battery-capacity | |
| #!/usr/bin/env python | |
| # coding=UTF-8 | |
| import math, subprocess | |
| p = subprocess.Popen(["ioreg", "-rc", "AppleSmartBattery"], stdout=subprocess.PIPE) | |
| output = p.communicate()[0] |
Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.
$ python -m SimpleHTTPServer 8000