# 替换brew.git:
cd "$(brew --repo)"
git remote set-url origin https://mirrors.aliyun.com/homebrew/brew.git
# 替换homebrew-core.git:
cd "$(brew --repo)/Library/Taps/homebrew/homebrew-core"
git remote set-url origin https://mirrors.aliyun.com/homebrew/homebrew-core.git
# 替换homebrew-bottles:
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# encoding: UTF-8 | |
require 'spec_helper' |
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// Node.js CheatSheet. | |
// Download the Node.js source code or a pre-built installer for your platform, and start developing today. | |
// Download: http://nodejs.org/download/ | |
// More: http://nodejs.org/api/all.html | |
// 0. Synopsis. | |
// http://nodejs.org/api/synopsis.html |
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cd ~/Library/Preferences/ | |
open com.googlecode.iterm2.plist |
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#!/usr/bin/env python | |
# encoding: utf-8 | |
""" | |
letters-to-100.py | |
""" | |
import string | |
letter_values = dict((l, i) for i, l in enumerate(string.lowercase, start=1)) | |
english_dict = open('/usr/share/dict/words', 'rU') |
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search regex: | |
~*(?:^|[^~])(~~(\\w+(\\s\\w+)*)~~) | |
# replace with (attention: there's a white space at the end) | |
**$1** |
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# install anaconda | |
jupyter-lab --generate-config | |
edit ~/.jupyter/jupyter_notebook_config.py, add lines: | |
c.NotebookApp.token = '' #you can set password here. | |
#https://github.com/jiahaog/nativefier | |
npm install nativefier -g | |
nativefier "http://localhost:8888" |
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=begin | |
Find pi by the Monte-Carlo method. | |
area of a circle = pi r^2 | |
area of a square = (2r)^2 = 4 r^2 | |
Perform random uniform sampling between -1 and 1. | |
The proportion of points in the unit circle is: | |
p = (pi r^2) / (4r^2) |
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""" | |
This code computes pi. It's not the first python | |
pi computation tool that I've written. This program | |
is a good test of the mpi4py library, which is | |
essentially a python wrapper to the C MPI library. | |
To execute this code: | |
mpiexec -np NUMBER_OF_PROCESSES -f NODES_FILE python mpipypi.py |
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''' listing 6: pi_mp.py | |
Multiprocessing based code to estimate the value of PI | |
using monte carlo sampling | |
Ref: http://math.fullerton.edu/mathews/n2003/montecarlopimod.html | |
Uses workers: | |
http://docs.python.org/library/multiprocessing.html#module-multiprocessing.pool | |
''' | |
import random |
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