1. # Equivalent definitions for $BMO$

The space of functions of bounded mean oscillation $BMO$ is defined by the BMO norm $$\label{norm} ||f||_{BMO} = \sup_{\text{cubes }Q} \frac{1}{|Q|} \int_Q |u(y) - u_Q| dy$$

But an equivalent definition is to take the sup over balls instead of cubes ...

2. # The space $BMO$

## Introducing $BMO$

The space of functions of bounded mean oscillation or $BMO$ arises when studying the space of functions whos deviation from the mean over cubes is bounded. In ways $BMO$ is similar to $L^\infty$, and it is often used as a replacement, however functions in $BMO$ may be ...

3. # GMPY_CFFI mpz speed

## gmpy_cffi is slow

Today I released version 0.1 of gmpy_cffi, a PyPy compatible implementation of gmpy. The problem is that my implementation is quite a bit slower.

As you can see, the time taken to initialize an mpz instance is about 10x slower under gmpy_cffi when compared to gmpy ...

4. # Scoping in Python 3

## Introduction

Recently I was working on porting my Python2 library gmpy_cffi to work under Python3 as well. I'm using py.test to organise and run my tests. Each test module is in it's own class, and so we have code that looks something like this

import sys
import ...
5. # Static site generation with pelican

## Introduction

I'd like to start by talking about pelican, a neat python based static site generator. Pelican allows you to generate static content (HTML and CSS) from reStructuredText (RST) files.

## Installing Pelican

You can install pelican with pip:

\$ pip install pelican


The code is on github if you're ...