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Direct links to free Springer books (pdf versions)

Graduate texts in mathematics

duplicates = multiple editions

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

A Classical Introduction to Modern Number Theory, Kenneth Ireland Michael Rosen

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import requests
import csv
import sys

# get me all active players

url_allPlayers = ("http://stats.nba.com/stats/commonallplayers?IsOnlyCurrentSeason"
		"=0&LeagueID=00&Season=2015-16")

#request url and parse the JSON

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The Best of the Best Practices (BOBP) Guide for Python

A "Best of the Best Practices" (BOBP) guide to developing in Python.

In General

Values

• "Build tools for others that you want to be built for you." - Kenneth Reitz
• "Simplicity is alway better than functionality." - Pieter Hintjens

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# Using airquality dataset
data <- airquality
data[4:10,3] <- rep(NA,7)
data[1:5,4] <- NA

# Removing categorical variables
data <- airquality[-c(5,6)]
summary(data)

#-------------------------------------------------------------------------------

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# Byte-compiled / optimized / DLL files
__pycache__/
*.py[cod]

# C extensions
*.so

# Distribution / packaging
.Python
env/

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# Step 1.
seaflow <- read.csv('seaflow_21min.csv', header=T)
summary(seaflow)

# Step 2.

# a <- sample(dim(seaflow)[1], dim(seaflow)[1]*0.8)
# trainseaflow <- seaflow[a,]
# b <- 1:dim(seaflow)[1]
# test.df <- seaflow[setdiff(b, a),]

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#include <iostream>
#include <chrono>
#include <random>

int main(int argc, char* argv [])
{
    auto x = 1;
    std::cout << "auto variable x = " << x << std::endl;

    srand(0u);

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import sys
import json

def hw():
    print 'Hello, world!'

def lines(fp):
    print str(len(fp.readlines()))

def main():

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Source:

Active Share, Tracking Error, and Manager Style

PIMCO Quantitative Research
Steve Sapra, Ph.D., CFA and Manny Hunjan, CFA
October 2013